Question 1

Solve the problem.
-Sean has $585 in his savings account. After he withdraws $35, what will his balance be?
A)$550
B)$620
C)-$620
D)-$550

Accepted Answer

Sean's new balance will be $585 - $35 = $550.

Question 2

Solve the problem.
-The difference between a country's exports and imports is called the country's trade balance. If a country had $ 137 billion in exports and $280 billion in imports, what was the country's trade balance?
A)$417 billion
B)$143 billion
C)-$143 billion
D)-$417 billion

Accepted Answer

The trade balance is calculated as exports minus imports. Therefore, the trade balance is $137 billion - $280 billion = -$143 billion, indicating a trade deficit of $143 billion.

Question 3

Solve the problem.
--5(2)(2)(-3)(-1)
A)-5
B)5
C)-60
D)60

Accepted Answer

The expression simplifies to -5 * 2 * 2 * -3 * -1 = -60, because the product of two negative numbers is positive, but the final multiplication by -1 makes the result negative.

Question 4

Solve the problem.
-$\left( - \frac { 3 } { 4 } \right)$
A) $- 3$
B) $- 4$
C)$- 9$
D) $- \frac { 9 } { 4 }$

Accepted Answer

The expression is already in its simplest form, so there is no problem to solve. The choice given is exactly the same as the expression, indicating no operation was performed or needed.

Question 5

Solve the problem.
-4(-5)(0)(-4)
A)0
B)-5
C)-80
D)80

Accepted Answer

Multiplication involving zero always results in zero, regardless of the other numbers involved.

Question 6

Solve the problem.
-2(5)(-2)(1)
A)6
B)-6
C)20
D)-20

Accepted Answer

The multiplication of the numbers 2, 5, -2, and 1 gives -20. Multiplying 2 and 5 gives 10, multiplying that by -2 gives -20, and multiplying by 1 does not change the value, so the result is -20.

Question 7

Solve the problem.
-A plane is flying over the ocean at a height of 12,060 feet above sea level. The depth of the ocean directly below the plane is 17,087 feet. How high is the plane above the ocean floor?
A)29,147 feet
B)29,247 feet
C)5027 feet
D)5127 feet

Accepted Answer

To find the height of the plane above the ocean floor, add the height of the plane above sea level to the depth of the ocean below sea level: 12,060 feet + 17,087 feet = 29,147 feet.

Question 8

Solve the problem.
-$\left( \frac { 13 } { 5 } \right) \left( - \frac { 7 } { 3 } \right)$
A) $- 27$
B) $- \frac { 91 } { 15 }$
C) $- 182$
D) $- \frac { 9 } { 10 }$

Accepted Answer

To solve the problem, multiply the numerators together and the denominators together: $\left( \frac { 13 } { 5 } \right) \left( - \frac { 7 } { 3 } \right) = - \frac { 91 } { 15 }$.

Question 9

Solve the problem.
-(2)(-5)
A)-110
B)-10
C)-100
D)-12

Accepted Answer

When you multiply 2 by -5, the result is -10.

Question 10

Solve the problem.
-(-9)(2)
A)-18
B)-20
C)-118
D)-180

Accepted Answer

Multiplying -9 by 2 gives -18.

Question 11

Solve the problem.
-$$\left( \frac { 54 } { 49 } \right) \left( \frac { 7 } { 9 } \right)$$
A) $- 1 \frac { 5 } { 49 }$
B) $\frac { 6 } { 7 }$
C) $\frac { 7 } { 9 }$
D) $- \frac { 6 } { 7 }$

Accepted Answer

The answer of Solve the problem.
-\[\left( \frac { 54 }...

Question 12

Solve the problem.
-2(6)(-9)
A)-108
B)108
C)3
D)-1

Accepted Answer

The correct calculation is 2 * 6 * (-9) = 12 * (-9) = -108.

Question 13

Solve the problem.
-3.6(-6.00)
A)9)7
B)9)6
C)-21.6
D)-2.4

Accepted Answer

To solve the problem, multiply 3.6 by -6.00, which equals -21.6.

Question 14

Solve the problem.
-The temperature at 5:00 was -3° C. Four hours later, it was -9° C. What was the change in temperature?
A)-6° C
B)12° C
C)-12° C
D)6° C

Accepted Answer

The change in temperature is found by subtracting the final temperature (-9° C) from the initial temperature (-3° C), which gives -9 - (-3) = -6° C.

Question 15

Solve the problem.
-(-4)(-9)
A)-36
B)72
C)36
D)46

Accepted Answer

When you multiply two negative numbers, the result is positive. Therefore, (-4)(-9) equals 36.

Question 16

Solve the problem.
--2.3(-14)
A)16.3
B)32.2
C)-16.3
D)-11.7

Accepted Answer

When you multiply -2.3 by -14, the negatives cancel out, and you multiply 2.3 by 14, which equals 32.2.

Question 17

Solve the problem.
-Trader Tower stands at 2986 feet high. Exchange Emporium is 882 feet tall. How much taller is Trader Tower than Exchange Emporium?
A)3868 feet
B)2104 feet
C)-3868 feet
D)-2104 feet

Accepted Answer

Trader Tower is 2986 feet - 882 feet = 2104 feet taller than Exchange Emporium.

Question 18

Solve the problem.
-$$\left. - \frac { 3 } { 10 } \right) \left( - \frac { 1 } { 5 } \right)$$
A) $- \frac { 6 } { 25 }$
B) $\frac { 9 } { 25 }$
C) $\frac { 3 } { 50 }$
D) $- \frac { 1 } { 25 }$

Accepted Answer

When multiplying two negative fractions, the negatives cancel out, making the product positive. The multiplication is $\frac{3}{10} * \frac{1}{5} = \frac{3*1}{10*5} = \frac{3}{50}$.

Question 19

Combine the numbers.
-8.6 - (- 1.6)+ 1.8
A)8)4
B)-5.2
C)8)8
D)12

Accepted Answer

Subtracting a negative number is the same as adding its positive value, so 8.6 - (-1.6) + 1.8 = 8.6 + 1.6 + 1.8 = 12.

Question 20

Solve the problem.
--14(0)
A)-28
B)0
C)14
D)-14

Accepted Answer

The answer of Solve the problem.
--14(0)
A)-28
B)0
C)14
D)-14...

Quiz 1: Real Numbers and Variables

Solve the problem. -Sean has $585 in his savings account. After he withdraws $35, what will his balance be?

Solve the problem. -The difference between a country's exports and imports is called the country's trade balance. If a country had $ 137 billion in exports and $280 billion in imports, what was the country's trade balance?

Solve the problem. --5(2) (2) (-3) (-1)

Solve the problem. - $\left( - \frac { 3 } { 4 } \right)$

Solve the problem. -4(-5) (0) (-4)

Solve the problem. -2(5) (-2) (1)

Solve the problem. -A plane is flying over the ocean at a height of 12,060 feet above sea level. The depth of the ocean directly below the plane is 17,087 feet. How high is the plane above the ocean floor?

Solve the problem. - $\left( \frac { 13 } { 5 } \right) \left( - \frac { 7 } { 3 } \right)$

Solve the problem. -(2) (-5)

Solve the problem. -(-9) (2)

Solve the problem. - $\left( \frac { 54 } { 49 } \right) \left( \frac { 7 } { 9 } \right)$

Solve the problem. -2(6) (-9)

Solve the problem. -3.6(-6.00)

Solve the problem. -The temperature at 5:00 was -3° C. Four hours later, it was -9° C. What was the change in temperature?

Solve the problem. -(-4) (-9)

Solve the problem. --2.3(-14)

Solve the problem. -Trader Tower stands at 2986 feet high. Exchange Emporium is 882 feet tall. How much taller is Trader Tower than Exchange Emporium?

Solve the problem. - $\left. - \frac { 3 } { 10 } \right) \left( - \frac { 1 } { 5 } \right)$

Combine the numbers. -8.6 - (- 1.6) + 1.8

Solve the problem. --14(0)