Estimating Decimals to Whole Numbers Addition and Subtraction

What will the answer be if you estimate to the nearest whole number?
$10.10 - $3.69 

• $7

• $6.40

• $14

• $6

What is a compatible number for 632.81?

• 600

• 632

• 633

• 700

Estimate using addition and subtraction. Round to the

nearest whole number before estimating.

8.1 + 3.7 + 7.9

Add 66.0 + 1.8 + 2.2

20.8 −9.67 

• 11.13

• 11.75

• 30.47

• 11

8.97 - 2.6 

• 6.37

• 11.57

• 8.71

• 1157

123.6 - 0.08 =