Model Add and Subtract Decimals

Which expressions represents the shaded parts of the model?

• 3.0 + 1.6

• 30 + 16

• .3 + .16

• .03 + .016

Add: 13.04 + 5.6

Subtract: 8.159- 3.084

What is the missing number to make the equation true?

257. 3___ - 142. 16 = 115.18

Erick found a stick that measures 14.936 inches long. How long is the piece of wood rounded to the nearest hundredth? ____________ inches

What decimal is 10 times as much as .4?

• 0.04

• 0.004

• 4.0

• .4

Use mental math to find the sum of 25.65, 13.23, and 6.35.

• $45.23

• $45.35

• $46.00

• $46.23

Traci spent $1.19 on a pack of gum and $0.95 on lip balm.

Part A

What was the total amount Traci spent? Use the model to help you.

• $1.19 + $0.95

• $2.14

• 214

• 119 + 95

Carter bought a fishing pole for $34.80 and a tackle box for $17.49.

What is the total amount Carter spent on both items?

• 52.29

• 51.19

• 52.19

• 51.29

Jessica spent $36.07 and Ben spent $7.79 at the grocery store. Which is the best estimate of how much Jessica and Ben spent together?

• $30

• $38

• $44

• $50