Question

Use mental math to solve the problem 8.02 − 5.98

Part B
Explain the method of mental math that you used to find the answer. Be specific with each step you took.

Answer 1

2.04

Explanation:

1. I make an estimate

2. I regroup some of the numbers.

3. then subtract it all and you get...

2.04

Answer 2

Round off 8.02 to 8 and 5.98 to 6.  Then subtract:  8 - 6 = 2 (approximately)