Chapter 10 Test Review

Match each addition expression with its sum.

• 7.8

• 1.8 + 6.2 + 0.2

• 8.2

• 0.6 + 7.7 +0.3

• 8.6

• 0.5 + 3.8 + 4.5

• 8.8

• 5.2 + 2.9 + 0.8

• 8.9

• 2.4 + 4.8 + 0.6

Match each addition expression with its sum.

• 3.80

• 1.01 +1.11 + 1.10

• 3.03

• 2.03 + 0.82 + 0.18

• 6.3

• 3.75 + 0.25 + 2.3

• 3.22

• 0.71 + 2.3 + 0.29

• 3.30

• 1.15 + 1.3 + 1.35

Align and estimate the sum by front-end estimation

3.6 + 4.1 + 1.5 = About _

Align and estimate the sum by rounding.

1.72 + 2.15 + 0.89 = About _._

Align and add.

4.6 + 1.58 =

• 5.18

• 5.28

• 6.18

• 6.28

Align and add.

2.05 + 0.86 + 1.13 =

• 3.04

• 3.94

• 4.04

• 4.14

Align the addends and determine the sum.

20.4 + 3.59 =

Align and addends and determine the sum.

825.365 + 47. 426 + 758.543 =

The winner of a 500-meter track cycling race finished the race in 35.605 seconds. The time for the cyclist who finished in second place was 0.067 seconds longer than the time for the winner. What was the time for the cyclist who finished in second place?

• 35.672

• 36.212

• 36.275

• 36.320

Use rounding to estimate.

$3.75 + $2.18 =