Estimating Sum and Difference of Decimals

Estimate the difference of 9.87 and 0.96.

• 11

• 10

• 9

• 8

Estimate the sum.

16.9 + 8.3 ≈ __

• 25

• 26

• 24

• 20

An estimation is an exact answer.

• True

• False

Estimate the difference.

38.2 - 4.8 ≈ __

• 30

• 32

• 33

• 34

Round each decimal to the nearest one.  Then subtract.
42.01 - 5.92 =

• 37

• 36

• 33

• 48

Estimate:
8.2 + 7.8

• 17

• 15

• 16

• 19

Estimate.  $3.52-$1.54

• About $6

• About $2

• About $0

• About $3.50

What is the best estimate for 12.98 + 7.3

• 19

• 21

• 20

• 20.28

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

• $7

• $6.40

• $14

• $6

Which is the best estimate?

4.97 + 13.02 (Round to the nearest whole)

• 14

• 16

• 18

• 19