Question

Estimate 19.5 - 7.136 by first rounding each number to the nearest tenth

Answer 1

13

Explanation:

To round up the number in the tenths place must either be 5 or larger; to round down the number must be 4 or lower. In this case, 19.5 rounds up to 20 while 7.136 rounds down to 7.

20 - 7 = 13