Question

Mike estimated the difference of 79.44 and 6.7 by rounding each number to the nearest whole.

What was Mike's estimate, and what is the actual difference of the numbers?

Enter your answers in the boxes.

Mike estimated the difference to be ___
. The actual difference is ___
.

Answer 1

Mike estimated the difference to be 72
The actual difference is 72.74

Explanation:

When mike rounded, 79.44 became 79 and 6.7 became 7

79.44 rounds to 79 because 0.44 is less then 0.5
6.7 rounds to 7 because 0.7 is greater then 0.5
so 79 - 7 = 72

The actual difference is 79.44 - 6.7 = 72.74

79.44
- 6.70
------------

72.74

Answer 2

mike's estimated the difference was 72, the actual difference is 72.74

hoped this helped!