Answer:
We wish to find here the exact and estimated product of decimal numbers and
Estimate: Exact:
Therefore the estimated product is
and exact product is
.
Answer:
We wish to find here the exact and estimated difference of decimal number from
.
Estimate: Exact:
Therefore the estimated difference is
and exact difference is
.
Answer:
To divide a number by decimal numbers we follow these steps:
Step 1: Count the number of decimal places in the divisor and move the decimal point that many places to the right.
Step 2: Move the decimal point in the dividend the same number of places to the right.
Step 3: Write the decimal point in the quotient directly above the decimal point in the dividend. Then divided as usual
We find here the exact and estimated division of decimal numbers by
We move the decimal point in the divisor and dividend one place to the right so
becomes the whole number
and
becomes
Estimate: Exact:
Therefore the estimated answer is
and exact answer is