# Quiz 4: Decimals

Mathematics

Q 1Q 1

Solve each application problem.Round each number as indicated.
499,501 to the nearest thousand

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Q 2Q 2

Refer to the article.
(a) How many pounds of lawn fertilizer are used each year in the entire metro area
(b) Do a division on your calculator to find the number of households in the metro area.
(c) Why does it make sense to round your answer to part (b) How would you round it

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Consider that the number 499,501 To round 499,501 to nearest thousand: Observe the digit, which is in the hundred place. 5 is at hundred place. If 5 or more at hundred place, add 1000 to 499000 to round the nearest thousands. Therefore, Thus the nearest thousands of 499,501 is .

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The decimal point separates the whole part from the fractional part in a decimal number. In the below chart we can see that the place value names for fractional parts are similar to those on the whole number side but end in " ths ". Now the place value for the given decimal number is Therefore the digit at tenths is , and at hundredths is .

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Q 5Q 5

Solve each application problem.Round each number as indicated.
602.4937 to the nearest hundredth

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Q 6Q 6

There are 2000 pounds in one ton.
(a) Find the number of tons equivalent to 25,529,295 pounds of fertilizer.
(b) Does your answer match the figure given in the article If not, what did the author of the article do to get 12,765 tons
(c) Is the author's figure accurate Why or why not

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Q 10Q 10

When the average amount of lawn fertilizer per household was calculated, the answer was probably not exactly 36 pounds. List six different values that are less than 36 that would round to 36. List two values with one decimal place; two values with two decimal places; and two values with three decimal places.
(b) List six different values that are greater than 36 that would round to 36. List two values each with one, two, and three decimal places.

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Q 30Q 30

First use front end rounding to round each number and estimate the answer. Then findthe exact answer.
7.6 + 82.0128 + 39.59
Estimate:
Exact:

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Q 33Q 33

First use front end rounding to round each number and estimate the answer. Then findthe exact answer.
79.1 - 3.602
Estimate:
Exact:

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There is no answer for this question

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Q 39Q 39

First use front end rounding to round each number and estimate the answer. Then findthe exact answer.
20.04 ÷ 4.8
Estimate:
Exact:

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Q 63Q 63

Solve each application problem.
Jennifer bought a 51-inch HDTV with 3D technology. The TV had an original price of $1299.99, and she bought two pairs of 3D glasses at $49.99 each. The store gave her a $200 discount, but she had to pay $94.50 in sales tax. How much did Jennifer pay

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Q 66Q 66

Solve each application problem.
Three types of ducks that are hunted in the United States are gadwalls, wigeons, and pintails. The estimated populations of these ducks are 2.5 million gadwalls, 2.551 million wigeons, and 2.56 million pintails. List the ducks in order from the greatest number to the least. ( Source: U.S. Fish and Wildlife Service.)

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Q 67Q 67

Simplify each expression in Exercises 5-21.
Write three hundred six ten-thousandths in numbers.

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Q 69Q 69

Solve each application problem.
Mr. Yamamoto bought 1.85 pounds of cheese at $2.89 per pound. What was the total amount he paid for the cheese, to the nearest cent

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Q 72Q 72

Solve each application problem.
Loren's baby had a temperature of 102.7 degrees. Later in the day it was 99.9 degrees. How much had the baby's temperature dropped

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Q 75Q 75

Solve each application problem.
Pat bought 6.5 ft of decorative gold chain to hang a light over her dining table. She paid $24.64. What was the cost per foot, to the nearest cent

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Q 76Q 76

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Lameck had three $20 bills. He spent $47.96 on gasoline and $0.87 for a candy bar at the convenience store. How much money does he have left
Estimate:
Exact:

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Q 78Q 78

Solve each application problem.
Write your own application problem using decimals. Make it different from Problems 20-24. Then show how to solve your problem.
Problems 20-24
Jennifer bought a 51-inch HDTV with 3D technology. The TV had an original price of $1299.99, and she bought two pairs of 3D glasses at $49.99 each. The store gave her a $200 discount, but she had to pay $94.50 in sales tax. How much did Jennifer pay
Three types of ducks that are hunted in the United States are gadwalls, wigeons, and pintails. The estimated populations of these ducks are 2.5 million gadwalls, 2.551 million wigeons, and 2.56 million pintails. List the ducks in order from the greatest number to the least. ( Source: U.S. Fish and Wildlife Service.)
Mr. Yamamoto bought 1.85 pounds of cheese at $2.89 per pound. What was the total amount he paid for the cheese, to the nearest cent
Loren's baby had a temperature of 102.7 degrees. Later in the day it was 99.9 degrees. How much had the baby's temperature dropped
Pat bought 6.5 ft of decorative gold chain to hang a light over her dining table. She paid $24.64. What was the cost per foot, to the nearest cent

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Q 79Q 79

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Manuela's daughter is 50 inches tall. Last year she was 46 inches tall. How much has she grown (When estimating, round to the nearest whole number.)
Estimate:
Exact:

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Q 81Q 81

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Sharon records textbooks on CDs for students who are blind. Her hourly wage is $11.63. How much did she earn working 16.5 hours last week, to the nearest cent
Estimate:
Exact:

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Q 83Q 83

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
The Farnsworth Elementary School has eight classrooms with 22 students in each one and 12 classrooms with 26 students in each one. How many students attend the school
Estimate:
Exact:

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Q 84Q 84

Round each income or expense item to the nearest dollar.
Income from pancake breakfast was $350.48.

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Q 85Q 85

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Toshihiro bought 2 yd of wool fabric. How many yards did he buy in all
Estimate:
Exact:

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Q 87Q 87

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Kimberly had $29.44 in her bank account. She paid $40 at the gas station and deposited a $220.06 paycheck into her account, but not in time to prevent a $35 charge for insufficient funds. What is the new balance in her account
Estimate:
Exact:

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Q 89Q 89

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Paulette bought 2.7 pounds of apples for $6.18. What was the cost per pound, to the nearest cent
Estimate:
Exact:

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Q 91Q 91

First round the numbers and estimate the answer to each application problem.Then find the exact answer.
Carter Community College received a $78,000 grant from a local hospital to help students pay tuition for nursing classes. How much money could be given to each of 107 students Round to the nearest dollar.
Estimate:
Exact:

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Q 92Q 92

First use front end rounding to round each number and estimate the answer.Then find the exact answer.

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Q 93Q 93

Use the information in the table to answer Exercises 33-36. All measurements arein inches.
If the distance around your child's head is 21 in., which hat size should you order

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Q 94Q 94

First use front end rounding to round each number and estimate the answer.Then find the exact answer.

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Q 95Q 95

Use the information in the table to answer Exercises 33-36. All measurements arein inches.
Find the difference between the smaller and larger measurements for each of the hat sizes.

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Q 96Q 96

First use front end rounding to round each number and estimate the answer.Then find the exact answer.

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Q 97Q 97

Use the information in the table to answer Exercises 33-36. All measurements arein inches.
Change the measurements for the medium (M) size hat to decimals. Then find the difference in the measurements. Show why this answer is equivalent to your answer for the medium (M) size in Exercise.
Exercise
Find the difference between the smaller and larger measurements for each of the hat sizes.

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Q 98Q 98First use front end rounding to round each number and estimate the answer.Then find the exact answer.

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Q 99Q 99

Use the information in the table to answer Exercises 33-36. All measurements arein inches.
Did you prefer doing the subtraction using fractions (as in Exercise ) or using decimals (as in Exercise ) Explain your reasoning.
Exercise
Find the difference between the smaller and larger measurements for each of the hat sizes.
Exercise
Change the measurements for the medium (M) size hat to decimals. Then find the difference in the measurements. Show why this answer is equivalent to your answer for the medium (M) size in Exercise.

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Q 100Q 100

First use front end rounding to round each number and estimate the answer.Then find the exact answer.
Americans' favorite household pet is a cat. There are about 93.6 million pet cats, 77.5 million pet dogs, and 16.6 million pet birds. How many more pet cats are there than pet birds ( Source: American Pet Products Association.)
Estimate:
Exact:

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Q 101Q 101

First use front end rounding to round each number and estimate the answer.Then find the exact answer.
Jasmin started with $406 in her bank account. She paid $315.53 to the day care center and $74.67 at the grocery store. What is the new amount in her account
Estimate:
Exact:

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Q 102Q 102

First use front end rounding to round each number and estimate the answer.Then find the exact answer.
Joey spent $1.59 for toothpaste, $5.33 for vitamins, and $18.94 for a toaster. He gave the clerk three $10 bills. How much change did he get
Estimate:
Exact:

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Q 103Q 103

First use front end rounding to round each number and estimate the answer.Then find the exact answer.
Roseanne is training for a wheelchair race. She raced 2.3 kilometers on Monday, 4 kilometers on Wednesday, and 5.25 kilometers on Friday. How far did she race altogether
Estimate:
Exact:

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Q 104Q 104First use front end rounding to round each number and estimate the answer.Then find the exact answer.

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Q 105Q 105First use front end rounding to round each number and estimate the answer.Then find the exact answer.

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Q 106Q 106

First use front end rounding to round each number and estimate the answer.Then find the exact answer.
(5.6)(0.002)

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Q 107Q 107

First use front end rounding to round each number and estimate the answer.Then find the exact answer.
0.071(0.005)

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Q 108Q 108

Decide whether each answer is reasonable by rounding the numbers and estimatingthe answer. If the exact answer is not reasonable, find and correct the error.
706.2 ÷ 12 = 58.85
Estimate:

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Q 109Q 109

Decide whether each answer is reasonable by rounding the numbers and estimatingthe answer. If the exact answer is not reasonable, find and correct the error.
26.6 ÷ 2.8 = 0.95
Estimate:

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Q 113Q 113

Solve each application problem.
Adrienne worked 46.5 hours this week. Her hourly wage is $14.24 for the first 40 hours and 1.5 times that rate over 40 hours. Find her total earnings to the nearest dollar.

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Q 114Q 114

Solve each application problem.
A book of 12 tickets costs $35.89 at the State Fair midway. What is the cost per ticket, to the nearest cent

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Q 115Q 115

Solve each application problem.
Stock in MathTronic sells for $3.75 per share. Kenneth is thinking of investing $500. How many whole shares could he buy

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Q 116Q 116

Solve each application problem.
Grapes are on sale at $0.99 per pound. How much will Ms. Lee pay for 3.5 pounds of grapes, to the nearest cent

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Q 119Q 119

Write each fraction or mixed number as a decimal. Round to the nearestthousandth when necessary.

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Q 120Q 120

Write each fraction or mixed number as a decimal. Round to the nearestthousandth when necessary.

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Q 121Q 121

Write each fraction or mixed number as a decimal. Round to the nearestthousandth when necessary.

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Q 122Q 122

Write each fraction or mixed number as a decimal. Round to the nearestthousandth when necessary.

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Q 128Q 128

Add, subtract, multiply, or divide as indicated.
1648.3 ÷ 0.46 Round to the nearest thousandth.

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Q 140Q 140

Use the information in the ad to answer Exercises 76-80. Round money answers tothe nearest cent. (Disregard any sales tax.)
How much would one pair of men's socks cost

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Q 141Q 141

Use the information in the ad to answer Exercises 76-80. Round money answers tothe nearest cent. (Disregard any sales tax.)
How much more would one pair of men's socks cost than one pair of children's socks

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Q 142Q 142

Use the information in the ad to answer Exercises 76-80. Round money answers tothe nearest cent. (Disregard any sales tax.)
How much would Fernando pay for a dozen pair of men's socks

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Q 143Q 143

Use the information in the ad to answer Exercises 76-80. Round money answers tothe nearest cent. (Disregard any sales tax.)
How much would Akiko pay for five pairs of teen jeans and four pairs of women's jeans

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Q 144Q 144

Use the information in the ad to answer Exercises 76-80. Round money answers tothe nearest cent. (Disregard any sales tax.)
What is the difference between the cheapest sale price for athletic shoes and the highest regular price

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Q 145Q 145

To decrease your risk of clogged arteries, it is recommended that you get at least 2 milligrams of vitamin B-6 each day. Use the information in the table to answer
(a) Which food item has the highest amount of vitamin B-6
(b) Which food item has the lowest amount
(c) What is the difference in the amount of vitamin B-6 between the food items with the highest and lowest amounts

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Q 146Q 146

To decrease your risk of clogged arteries, it is recommended that you get at least 2 milligrams of vitamin B-6 each day. Use the information in the table to answer
(a) Suppose you ate a banana, 3 ounces of skinless chicken, and 1 cup of strawberries. How many milligrams of vitamin B-6 would you get
(b) Did you get more or less than the recommended daily amount By how much

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Q 147Q 147

Circle the correct answer in Exercises 1-4
The number 11.084 has how many decimal places
2
3
5

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Q 148Q 148

Circle the correct answer in Exercises 1-4
The number 0.7185 has how many decimal places
4
5
1

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Q 149Q 149

Write the decimal number that has the specified place values.
Circle the correct answer in Exercises 1-4
In 22.85, the 8 means what
8 tenths
8 hundredths
8 ones

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Q 150Q 150

Circle the correct answer in Exercises 1-4
In 57.213, the 3 means what
3 thousandths
3 tenths
3 hundredths

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Q 153Q 153

Identify the digit that has the given place value.
0.83472
thousandths
ten-thousandths
tenths

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Q 154Q 154

Identify the digit that has the given place value.
0.51968
tenths
ten-thousandths
hundredths

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Q 159Q 159

Write the decimal number that has the specified place values.
Fill in the blanks for this decimal number:
0 ones, 5 hundredths, 1 ten, 4 hundreds, 2 tenths
410. ___ ___

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Q 160Q 160

Write the decimal number that has the specified place values.
Fill in the blanks for this decimal number:
7 tens, 9 tenths, 3 ones, 6 hundredths, 8 hundreds ___ ___ ___.96

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Q 161Q 161

Write the decimal number that has the specified place values.
3 thousandths, 4 hundredths, 6 ones, 2 ten-thousandths, 5 tenths

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Q 162Q 162

Write the decimal number that has the specified place values.
8 ten-thousandths, 4 hundredths, 0 ones, 2 tenths, 6 thousandths

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Q 163Q 163

Write the decimal number that has the specified place values.
4 hundredths, 4 hundreds, 0 tens, 0 tenths, 5 thousandths, 5 thousands, 6 ones

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Q 164Q 164

Write the decimal number that has the specified place values.
7 tens, 7 tenths, 6 thousands, 6 thousandths, 3 hundreds, 3 hundredths, 2 ones

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Q 193Q 193

For each exercise, rewrite the words as a decimal number.
Fill in the blanks to write six and seven tenths as a decimal number.
___. ___

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Q 194Q 194

For each exercise, rewrite the words as a decimal number.
Fill in the blanks to write eight and twelve hundredths as a decimal number.
___. ___ ___

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Q 197Q 197

For each exercise, rewrite the words as a decimal number.
four hundred twenty and eight thousandths

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Q 198Q 198

For each exercise, rewrite the words as a decimal number.
two hundred and twenty-four thousandths

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Q 199Q 199

For each exercise, rewrite the words as a decimal number.
seven hundred three ten-thousandths

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Q 200Q 200

For each exercise, rewrite the words as a decimal number.
eight hundred and six hundredths

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Q 201Q 201

For each exercise, rewrite the words as a decimal number.
seventy-five and thirty thousandths

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Q 203Q 203

For each exercise, rewrite the words as a decimal number.
Anne read the number 4302 as "four thousand three hundred and two." Explain what is wrong with the way Anne read the number.

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Q 204Q 204

For each exercise, rewrite the words as a decimal number.
Jerry read the number 9.0106 as "nine and one hundred and six ten-thousandths." Explain the error he made.

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Q 205Q 205

The grandfather on the first page of this chapter needs to select the correctfishing line for his grandson's reel. Fishing line is sold according to how manypounds of "pull" the line can withstand before breaking. Use the table to answerExercises 59-62. Write all fractions in lowest terms. (Note: The diameter of thefishing line is its thickness.)
Write the diameter of 8-pound test line in words and as a fraction.

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Q 206Q 206

The grandfather on the first page of this chapter needs to select the correctfishing line for his grandson's reel. Fishing line is sold according to how manypounds of "pull" the line can withstand before breaking. Use the table to answerExercises 59-62. Write all fractions in lowest terms. (Note: The diameter of thefishing line is its thickness.)
Write the diameter of 17-pound test line in words and as a fraction.

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Q 207Q 207

The grandfather on the first page of this chapter needs to select the correctfishing line for his grandson's reel. Fishing line is sold according to how manypounds of "pull" the line can withstand before breaking. Use the table to answerExercises 59-62. Write all fractions in lowest terms. (Note: The diameter of thefishing line is its thickness.)
What is the test strength of the line with a diameter of inch

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Q 208Q 208

The grandfather on the first page of this chapter needs to select the correctfishing line for his grandson's reel. Fishing line is sold according to how manypounds of "pull" the line can withstand before breaking. Use the table to answerExercises 59-62. Write all fractions in lowest terms. (Note: The diameter of thefishing line is its thickness.)
What is the test strength of the line with a diameter of sixteen thousandths inch

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Q 209Q 209

Suppose your job is to take phone orders for precision parts. Usethe table, and in Exercises 63-66, write the correct part number that matches whatyou hear the customer say over the phone. In Exercises 67-68, write the words youwould say to the customer.
"Please send the six-tenths centimeter bolt." Part number _____.

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Q 210Q 210

Suppose your job is to take phone orders for precision parts. Usethe table, and in Exercises 63-66, write the correct part number that matches whatyou hear the customer say over the phone. In Exercises 67-68, write the words youwould say to the customer.
"The part missing from our order was the one and six hundredths size."
Part number _________.

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Q 211Q 211

Suppose your job is to take phone orders for precision parts. Usethe table, and in Exercises 63-66, write the correct part number that matches whatyou hear the customer say over the phone. In Exercises 67-68, write the words youwould say to the customer.
"The size we need is one and six thousandths centimeters."
Part number __________.

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Q 212Q 212

Suppose your job is to take phone orders for precision parts. Usethe table, and in Exercises 63-66, write the correct part number that matches whatyou hear the customer say over the phone. In Exercises 67-68, write the words youwould say to the customer.
"Do you still stock the twenty-six hundredths centimeter bolt "
Part number _______.

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Q 213Q 213

Suppose your job is to take phone orders for precision parts. Usethe table, and in Exercises 63-66, write the correct part number that matches whatyou hear the customer say over the phone. In Exercises 67-68, write the words youwould say to the customer.
"What size is part number 4-E " Write your answer in words.

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Q 214Q 214

Suppose your job is to take phone orders for precision parts. Usethe table, and in Exercises 63-66, write the correct part number that matches whatyou hear the customer say over the phone. In Exercises 67-68, write the words youwould say to the customer.
"What size is part number 4-B " Write your answer in words.

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Q 215Q 215

Use your knowledge of place value to work Exercises 69-76 in order.
Look back at the decimal place value chart early in this section. What do you think would be the names of the next four places to the right of hundred-thousandths What information did you use to come up with these names

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Q 216Q 216

Use your knowledge of place value to work Exercises 69-76 in order.
A common mistake is to think that the first place to the right of the decimal point is "oneths" and the second place is "tenths." Why might someone make that mistake How would you explain why there is no "oneths" place

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Q 217Q 217

Use your knowledge of place value to work Exercises 69-76 in order.
Use your answer to Exercise to write 0.72436955 in words.
Exercise
Look back at the decimal place value chart early in this section. What do you think would be the names of the next four places to the right of hundred-thousandths What information did you use to come up with these names

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Q 218Q 218

Use your knowledge of place value to work Exercises 69-76 in order.
Use your answer to Exercise to write 0.000678554 in words.
Exercise
Look back at the decimal place value chart early in this section. What do you think would be the names of the next four places to the right of hundred-thousandths What information did you use to come up with these names

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Q 219Q 219

Use your knowledge of place value to work Exercises 69-76 in order.
Write 8006.500001 in words.

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Q 220Q 220

Use your knowledge of place value to work Exercises 69-76 in order.
Write 20,060.000505 in words.

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Q 221Q 221

Use your knowledge of place value to work Exercises 69-76 in order.
Write this decimal in numbers.
three hundred two thousand forty ten-millionths

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Q 222Q 222

Use your knowledge of place value to work Exercises 69-76 in order.
Write this decimal in numbers.
nine billion, eight hundred seventy-six million, five hundred forty-three thousand, two hundred ten and one hundred million two hundred thousand three hundred billionths

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Q 223Q 223

Which digit would you look at when deciding how to round 4.8073 to the nearest tenth
__________

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Q 224Q 224

Which digit would you look at when deciding how to round 875.639 to the nearest hundredth
___________

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Q 243Q 243

Nardos is grocery shopping. The store will round the amount she pays for each itemto the nearest cent. Write the rounded amounts.
Soup is three cans for $2.45, so one can is $0.81666. Nardos pays ________

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Q 244Q 244

Nardos is grocery shopping. The store will round the amount she pays for each itemto the nearest cent. Write the rounded amounts.
Orange juice is two cartons for $3.89, so one carton is $1.945. Nardos pays ________.

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Q 245Q 245

Nardos is grocery shopping. The store will round the amount she pays for each itemto the nearest cent. Write the rounded amounts.
Facial tissue is four boxes for $4.89, so one box is $1.2225. Nardos pays __________.

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Q 246Q 246

Nardos is grocery shopping. The store will round the amount she pays for each itemto the nearest cent. Write the rounded amounts.
Muffin mix is three packages for $1.99, so one package is $0.66333. Nardos pays __________.

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Q 247Q 247

Nardos is grocery shopping. The store will round the amount she pays for each itemto the nearest cent. Write the rounded amounts.
Candy bars are six for $4.19, so one bar is $0.6983. Nardos pays _________.

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Q 248Q 248

Nardos is grocery shopping. The store will round the amount she pays for each itemto the nearest cent. Write the rounded amounts.
Spaghetti is four boxes for $4.39, so one box is $1.0975. Nardos pays ________.

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Q 249Q 249

As she gets ready to do her income tax return, Ms. Chen rounds each amount to thenearest dollar. Write the rounded amounts.
Income from job, $48,649.60

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Q 250Q 250

As she gets ready to do her income tax return, Ms. Chen rounds each amount to thenearest dollar. Write the rounded amounts.
Income from interest on bank account, $69.58

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Q 251Q 251

As she gets ready to do her income tax return, Ms. Chen rounds each amount to thenearest dollar. Write the rounded amounts.
Donations to charity, $840.08

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Q 252Q 252

As she gets ready to do her income tax return, Ms. Chen rounds each amount to thenearest dollar. Write the rounded amounts.
Federal withholding, $6064.49

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Q 259Q 259

The table lists speed records for various types of transportation.
Round these speed records to the nearest whole number.
(a) Motorcycle
(b) Roller coaster

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Q 260Q 260

The table lists speed records for various types of transportation.
Round these speed records to the nearest hundredth.
(a) Daytona 500 average winning speed
(b) Indianapolis 500 average winning speed

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Q 261Q 261

The table lists speed records for various types of transportation.
Round these speed records to the nearest tenth.
(a) Indianapolis 500 average winning speed
(b) Land speed record

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Q 262Q 262

The table lists speed records for various types of transportation.
Round these speed records to the nearest hundred.
(a) military jet
(b) Boeing 757-300 airplane

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Q 263Q 263

Use your knowledge about rounding money amounts to work Exercises 41-44 in order.
Explain what happens when you round $0.499 to the nearest dollar. Why does this happen

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Q 264Q 264

Use your knowledge about rounding money amounts to work Exercises 41-44 in order.
Look again at Exercise. How else could you round $0.499 that would be more helpful What kind of guideline does this suggest about rounding to the nearest dollar
Exercise
Explain what happens when you round $0.499 to the nearest dollar. Why does this happen

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Q 265Q 265

Use your knowledge about rounding money amounts to work Exercises 41-44 in order.
Explain what happens when you round $0.0015 to the nearest cent. Why does this happen

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Q 266Q 266

Use your knowledge about rounding money amounts to work Exercises 41-44 in order.
Suppose you want to know which of these amounts is less, so you round them both to the nearest cent.
$0.5968
$0.6014
Explain what happens. Describe what you could do instead of rounding to the nearest cent.

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Q 267Q 267

Rewrite each addition or subtraction in columns. Write in anydecimal points or zeros, as needed. Do not complete the calculation.
6.42 + 10.163

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Q 268Q 268

Rewrite each addition or subtraction in columns. Write in anydecimal points or zeros, as needed. Do not complete the calculation.
7 + 9.204

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Q 269Q 269

Rewrite each addition or subtraction in columns. Write in anydecimal points or zeros, as needed. Do not complete the calculation.
20 - 9.1263

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Q 270Q 270

Rewrite each addition or subtraction in columns. Write in anydecimal points or zeros, as needed. Do not complete the calculation.
137.06 - 12

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Q 283Q 283

This drawing of a human skeleton shows the average length of the longestbones, in inches. Use the drawing to answer Exercises 17-20.(Source: The Human Body.)
(a) What is the combined length of the humerus and radius bones
(b) What is the difference in the lengths of these two bones

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Q 284Q 284

This drawing of a human skeleton shows the average length of the longestbones, in inches. Use the drawing to answer Exercises 17-20.(Source: The Human Body.)
(a) What is the total length of the femur and tibia bones
(b) How much longer is the femur than the tibia

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Q 285Q 285

This drawing of a human skeleton shows the average length of the longestbones, in inches. Use the drawing to answer Exercises 17-20.(Source: The Human Body.)
(a) Find the sum of the lengths of the humerus, ulna, femur, and tibia.
(b) How much shorter is the 8th rib than the 7th rib

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Q 286Q 286

This drawing of a human skeleton shows the average length of the longestbones, in inches. Use the drawing to answer Exercises 17-20.(Source: The Human Body.)
(a) What is the difference in the lengths of the two bones in the lower arm
(b) What is the difference in the lengths of the two bones in the lower leg

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Q 287Q 287

This drawing of a human skeleton shows the average length of the longestbones, in inches. Use the drawing to answer Exercises 17-20.(Source: The Human Body.)
Explain and correct the error that a student made when he added 0.72 + 6 + 39.5 this way:

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Q 288Q 288

This drawing of a human skeleton shows the average length of the longestbones, in inches. Use the drawing to answer Exercises 17-20.(Source: The Human Body.)
Explain the difference between saying "subtract 2.9 from 8" and saying "2.9 minus 8."

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Q 289Q 289

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.
The Estimate is already done. Now find the Exact answer.

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Q 290Q 290

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.
The Estimate is already done. Now find the Exact answer.

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Q 291Q 291

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.

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Q 292Q 292

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.

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Q 293Q 293

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.
What is 8.6 less 3.751
Estimate: Exact:

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Q 294Q 294

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.
What is 31.7 less 4.271
Estimate: Exact:

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Q 295Q 295

Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.

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Q 296Q 296Use front end rounding to round each number. Then add or subtract the roundednumbers to get an estimated answer. Finally, find the exact answer.

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Q 297Q 297

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
12 - 11.725
2.75
0.275
27.5

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Q 298Q 298

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
20 - 1.37
0.1863
1.863
18. 63

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Q 299Q 299

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
6.5 + 0.007
6.507
0.6507
65.07

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Q 300Q 300

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
9.67 + 0.09
0.976
9.76
0.00976

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Q 301Q 301

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
456.71 - 454.9
18.1
181
1.81

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Q 302Q 302

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
803.25 - 0.6
802.65
0.80265
8.0265

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Q 303Q 303

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
6004.003 + 52.7172
60.567202
605.67202
6056.7202

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Q 304Q 304

Use your estimation skills to pick the most reasonable answer for each example.Do not solve the problems. Circle your choice.
128.35 + 97.0093
2253.593
225.3593
0.2253593

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Q 307Q 307

How many Internet users are there in all the countries listed in the table
Estimate:
Exact:

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Q 308Q 308

Using the exact answer from Exercise, calculate the number of worldwide Internet users in countries other than the ones in the table.
Estimate:
Exact:
Exercise
How many Internet users are there in all the countries listed in the table
Estimate:
Exact:

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Essay

Q 309Q 309

The tallest known land mammal, a prehistoric ancestor of the rhino, was 6.4 meters tall. Compare the rhino's height to the combined heights of these three NBA basketball players: Dirk Nowitzki at 2.13 meters, Kobe Bryant at 1.98 meters, and Kevin Love at 2.08 meters. Is their combined height greater or less than the rhino's height By how much
( Source: www.NBA.com/players)
Estimate:
Exact:

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Q 310Q 310

At a bakery, Sue Chee bought $7.42 worth of muffins and $10.09 worth of croissants for a staff party and a $0.69 cookie for herself. How much change did she receive from two $10 bills
Estimate:
Exact:

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Q 311Q 311

Namiko is comparing two boxes of chicken nuggets. One box weighs 9.85 ounces and the other weighs 10.5 ounces. What is the difference in the weight of the two boxes
Estimate:
Exact:

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Q 312Q 312

Sammy works in a veterinarian's office. He weighed two young kittens. One was 3.9 ounces and the other was 4.05 ounces. What was the difference in the weight of the two kittens
Estimate:
Exact:

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Q 313Q 313

Find the perimeter of (distance around) each figure by adding the lengths of the sides.
Estimate:
Exact:

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Q 314Q 314

Find the perimeter of (distance around) each figure by adding the lengths of the sides.
Estimate:
Exact:

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Q 315Q 315

The grandfather and grandson on the first page of this chapter are buying fishingequipment. They brought along the store s sale insert from the Sunday paper. Use theinformation below on sale prices to answer Exercises 49 52. When estimating, roundto the nearest whole number.
What is the difference in price between the fluorescent and regular fishing line
Estimate:
Exact:

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Q 316Q 316

The grandfather and grandson on the first page of this chapter are buying fishingequipment. They brought along the store s sale insert from the Sunday paper. Use theinformation below on sale prices to answer Exercises 49 52. When estimating, roundto the nearest whole number.
How much more does the least expensive spinning rod cost than the least expensive spinning reel
Estimate:
Exact:

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Q 317Q 317

The grandfather and grandson on the first page of this chapter are buying fishingequipment. They brought along the store s sale insert from the Sunday paper. Use theinformation below on sale prices to answer Exercises 49 52. When estimating, roundto the nearest whole number.
Find the total cost of the second highest priced spinning reel, two packages of tin split shot, and a three-tray tackle box. Sales tax for all the items was $2.31.
Estimate:
Exact:

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Q 318Q 318

The grandfather and grandson on the first page of this chapter are buying fishingequipment. They brought along the store s sale insert from the Sunday paper. Use theinformation below on sale prices to answer Exercises 49 52. When estimating, roundto the nearest whole number.
The grandfather bought three bobbers on sale. He also bought some SPF15 sunscreen for $7.53 and a flotation vest for $44.96. Sales tax was $3.74. How much did he spend in all
Estimate:
Exact:

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Q 322Q 322

Compare the amount Olivia spent on entertainment to the amount spent on car repairs and gas. What is the difference

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Q 325Q 325

Olivia Sanchez kept track of her expenses for one month. Use her list to answerExercises 53 58.

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Q 326Q 326

Olivia Sanchez kept track of her expenses for one month. Use her list to answerExercises 53 58.

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Q 327Q 327

Olivia Sanchez kept track of her expenses for one month. Use her list to answerExercises 53 58.

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Q 328Q 328

Fill in the blanks for Exercises 1 4.
ln 4.2 × 3.46, how many decimal places will the product have _________

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Q 329Q 329

Fill in the blanks for Exercises 1 4.
ln 8.071 × 2.79, how many decimal places will the product have ________

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Q 330Q 330

Fill in the blanks for Exercises 1 4.
ln (0.12) (0.03), how many zeros do you have to write in the product as placeholders _________

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Q 331Q 331

Fill in the blanks for Exercises 1 4.
ln (0.0006) (0.07), how many zeros do you have to write in the product as placeholders ________

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Q 340Q 340

Use the fact that 72 * 6 = 432 to solve Exercises 13 18 by simplycounting decimal places and writing the decimal point in the correct location.
72 0.6 = 432

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Q 341Q 341

Use the fact that 72 * 6 = 432 to solve Exercises 13 18 by simplycounting decimal places and writing the decimal point in the correct location.
7.2 6 = 432

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Q 342Q 342

Use the fact that 72 * 6 = 432 to solve Exercises 13 18 by simplycounting decimal places and writing the decimal point in the correct location.
(7.2) (0.06) = 432

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Q 343Q 343

Use the fact that 72 * 6 = 432 to solve Exercises 13 18 by simplycounting decimal places and writing the decimal point in the correct location.
(0.72) (0.6) = 432

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Q 344Q 344

Use the fact that 72 * 6 = 432 to solve Exercises 13 18 by simplycounting decimal places and writing the decimal point in the correct location.
0.72 (0.06) = 432

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Q 345Q 345

Use the fact that 72 * 6 = 432 to solve Exercises 13 18 by simplycounting decimal places and writing the decimal point in the correct location.
72 (0.0006) = 432

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Q 350Q 350

First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 351Q 351

First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 352Q 352

First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 353Q 353First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 354Q 354First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 355Q 355First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 356Q 356First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 357Q 357First use front end rounding to round each number and estimate the answer. Then findthe exact answer.

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Q 358Q 358

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
How much was his car payment $28.90
reasonable
unreasonable, should be _____________

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Q 359Q 359

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
How many hours did she work today 25 hours
reasonable
unreasonable, should be _____________

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Q 360Q 360

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
How tall is her son 60.5 in.
reasonable
unreasonable, should be _____________

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Q 361Q 361

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
How much does he pay for rent now $6.92
reasonable
unreasonable, should be _____________

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Q 362Q 362

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
What is the price of one gallon of milk $419
reasonable
unreasonable, should be _____________

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Q 363Q 363

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
How long is the living room 16.8 feet
reasonable
unreasonable, should be _____________

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Q 364Q 364

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
How much did Mrs. Brown's baby weigh 0.095 pound
reasonable
unreasonable, should be _____________

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Q 365Q 365

Even with most of the problem missing, you can tell whether or not these answers arereasonable. Circle reasonable or unreasonable. If the answer is unreasonable, movethe decimal point, or insert a decimal point, to make the answer reasonable.
What was the sale price of the jacket $1.49
reasonable
unreasonable, should be _____________

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Q 366Q 366

Solve each application problem. Round money answers to the nearest centwhen necessary.
LaTasha worked 50.5 hours over the last two weeks. She earns $18.73 per hour. How much did she make

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Q 367Q 367

Solve each application problem. Round money answers to the nearest centwhen necessary.
Michael's time card shows 42.2 hours at $10.03 per hour. What are his earnings

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Q 368Q 368

Solve each application problem. Round money answers to the nearest centwhen necessary.
Sid needs 0.6 meter of canvas material to make a carry-all bag that fits on his wheelchair. If canvas is $4.09 per meter, how much will Sid spend ( Note: $4.09 per meter means $4.09 for one meter.)

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Q 369Q 369

Solve each application problem. Round money answers to the nearest centwhen necessary.
How much will Mrs. Nguyen pay for 3.5 yards of lace trim that costs $0.87 per yard

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Q 370Q 370

Solve each application problem. Round money answers to the nearest centwhen necessary.
Michelle filled the tank of her pickup truck with regular unleaded gas. Use the information shown on the pump to find how much she paid for gas.

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Q 371Q 371

Solve each application problem. Round money answers to the nearest centwhen necessary.
Ground beef and chicken legs are on sale. Juma bought 1.7 pounds of legs. Use the information in the ad to find the amount she paid.

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Q 372Q 372

Solve each application problem. Round money answers to the nearest centwhen necessary.
Ms. Rolack is a real estate broker who helps people sell their homes. Her fee is 0.07 times the price of the home. What was her fee for selling a $289,500 home

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Q 373Q 373

Solve each application problem. Round money answers to the nearest centwhen necessary.
Josh Hamilton of the Texas Rangers baseball team had a batting average of 0.359 in the 2010 season. He went to bat 518 times. How many hits did he make ( Hint: Multiply the number of times at bat by his batting average.) Round to the nearest whole number. ( Source: World Almanac and Book of Facts.)

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Q 374Q 374

Paper money in the United States has not always been the same size. Shown below are the measurements of bills printed before 1929 and the measurements from 1929 on. Use this information to answer Exercise. (Source: www.moneyfactory.com)
(a) Find the area of each bill, rounded to the nearest tenth. ( Hint: Multiply to find area.)
(b) What is the difference in the rounded areas

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Q 375Q 375

Paper money in the United States has not always been the same size. Shown below are the measurements of bills printed before 1929 and the measurements from 1929 on. Use this information to answer Exercise. (Source: www.moneyfactory.com)
(a) Find the perimeter of each bill, to the nearest hundredth. ( Hint: Add to find perimeter.)
(b) How much less is the perimeter of today's bills than the bills printed before 1929

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Q 376Q 376

Paper money in the United States has not always been the same size. Shown below are the measurements of bills printed before 1929 and the measurements from 1929 on. Use this information to answer Exercises 47 50. (Source: www.moneyfactory.com)
The thickness of one piece of today's paper money is 0.0043 inch.
(a) If you had a pile of 100 bills, how high would the pile be
(b) How high would a pile of 1000 bills be

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Q 377Q 377

Paper money in the United States has not always been the same size. Shown below are the measurements of bills printed before 1929 and the measurements from 1929 on. Use this information to answer Exercises 47 50. (Source: www.moneyfactory.com)
(a) Use your answers from Exercise to find the number of bills in a pile that is 43 inches high.
(b) How much money would you have if the pile is all $20 bills
Exercise
The thickness of one piece of today's paper money is 0.0043 inch.
(a) If you had a pile of 100 bills, how high would the pile be
(b) How high would a pile of 1000 bills be

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Q 378Q 378

Judy Lewis pays $48.96 per month for basic cable TV. The one-time installation fee was $89. How much will she pay for cable over two years How much would she pay in two years for the deluxe cable package that costs $109.78 per month

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Q 379Q 379

Chuck's car payment is $420.27 per month for four years. He also made a down payment of $5000 at the time he bought the car. How much will he pay altogether

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Q 380Q 380

Barry bought 16.5 meters of rope at $0.47 per meter and three meters of wire at $1.05 per meter. How much change did he get from three $5 bills

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Q 381Q 381

Susan bought a 46-inch LED Smart HDTV that cost $1249.97. She paid $66.59 per month for 24 months. How much could she have saved by paying for the HDTV when she bought it

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Q 382Q 382

Use the information from the Look Smart online catalog to answer Exercise. Disregard sales tax.
(a) What is the total cost, including shipping, of sending three short-sleeved, solid-color shirts, size M, with monograms, in a gift box to your aunt for her birthday
(b) How much did the monograms, gift box, and shipping add to the cost of your gift

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Q 383Q 383

Use the information from the Look Smart online catalog to answer Exercise. Disregard sales tax.
(a) Suppose you order one of each type of shirt for yourself, adding a monogram to each of the solidcolor shirts. At the same time, you order three long-sleeved striped shirts, in the XXL size, shipped to your dad in a gift box. Find the total cost of your order.
(b) What is the difference in total cost (excluding shipping) between the shirts for yourself and the gift for your dad

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Q 384Q 384

Look for patterns in the multiplications as you work Exercises 57 and 58 in order.
Do these multiplications:
(5.96) (10) = _______ (3.2) (10) = _____
(0.476) (10) = _____ (80.35) (10) = _____
(722.6) (10) = _____ (0.9) (10 = _____)
What pattern do you see Write a "rule" for multiplying by 10. What do you think the rule is for multiplying by 100 by 1000 Write the rules and try them out on the numbers above.

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Q 385Q 385

Look for patterns in the multiplications as you work Exercises 57 and 58 in order.
Do these multiplications:
(59.6) (0.1) = ______ (3.2) (0.1) = _____
(0.476) (0.1) = _____ (80.35) (0.1) = _____
(65) (0.1) = _____ (523) (0.1) = _____
What pattern do you see Write a "rule" for multiplying by 0.1. What do you think the rule is for multiplying by 0.01 by 0.001 Write the rules and try them out on the numbers above.

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Q 413Q 413

Simplify.
Find the perimeter and area of this rectangular computer chip. Round your answers to the nearest tenth.

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Q 414Q 414

Simplify.
Find the perimeter and area of this rectangular watch face. Round your answers to the nearest hundredth.

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Q 415Q 415

Use the table on heaviest fruits and vegetables to answer Exercises 30 34.
(a) Identify the heaviest and lightest weight items in the table.
(b) Find the difference in weight between the heaviest and lightest items.

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Q 416Q 416

Use the table on heaviest fruits and vegetables to answer Exercises 30 34.
If you used the radish, tomato, and onion in a salad, what would be their combined weight to the nearest tenth of a pound

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Q 417Q 417

Use the table on heaviest fruits and vegetables to answer Exercises 30 34.
(a) How much would six grapefruits weigh
(b) Find the total weight of a dozen strawberries.

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Q 418Q 418

Use the table on heaviest fruits and vegetables to answer Exercises 30 34.
(a) How much heavier is the tomato than the apple
(b) How much less does the peach weigh than the apple

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Q 419Q 419

Use the table on heaviest fruits and vegetables to answer Exercises 30 34.
(a) Round the weight of each fruit or vegetable to the nearest whole number.
(b) Use the rounded numbers to find an estimated total weight if you had one of each item in the table. Then find the exact total weight.

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Q 420Q 420

Use the table on heaviest fruits and vegetables to answer Exercises 30 34.
A craft cooperative paid $60.32 for enough fabric to make eight baby blankets for their store. They sold the blankets for $18.95 each. How much profit was made on the blankets

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Q 421Q 421

Which problem below has a whole number for the divisor Find it and then rewrite the problem using the symbol.
(a) Divide 0.25 by 0.05
(b) 25 0.5
(c) 25.5 5

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Q 422Q 422

Which problem below has a whole number for the divisor Find it and then rewrite the problem using the symbol.
(a) 0.423 0.07
(b) 42.3 7
(c) Divide 423 by 0.7

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Q 423Q 423

In how do you make 2.2 a whole number, and how does that change 8.24 Use arrows to show how to move the decimal points.

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Q 424Q 424

In how do you make 5.1 a whole number, and how does that change 10.5 Use arrows to show how to move the decimal points.

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Q 433Q 433

Use the fact that 108 , 18 = 6 to work Exercises 13-16 simplyby moving decimal points.
0.108 ÷ 1.8

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Q 434Q 434

Use the fact that 108 , 18 = 6 to work Exercises 13-16 simplyby moving decimal points.
10.8 ÷ 18

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