Add and Subtract Decimals

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

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

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

• $45.23

• $45.35

• $46.00

• $46.23

Tags

CCSS.3.NBT.A.2

Choose all the expressions that are equal to 4.19 + 6.53.

• 4.2 + 6.5

• 16.75 – 6.03

• 1.72 + 9

• 15 – 4.38

• 6.53 + 4.19

Tags

CCSS.3.NBT.A.2

Select all of the answers that include 9.81 to make each equation true.

• 12.47 – □ = 2.66

• 8.05 + □ = 17.96

• 14.08 – □ = 4.17

• 3.67 + □ = 13.48

Tags

CCSS.5.NBT.B.7

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

Tags

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

 $9.4–4.8$  

• 4.6

• 4.7

• 5.7

• 6.7

Tags

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

Todd swam two trials of the 50-meter freestyle. His time was 32.15 seconds for the first trial and 31.67 seconds for the second trial.

Part A

What is Todd’s combined time for both trials?

• 638.2

• 6382

• 6.382

• 63.82

Tags

CCSS.3.MD.A.1

CCSS.3.NBT.A.2

Brady drew a rectangle with an area of 35.52 square centimeters. Staci drew a rectangle with an area of 61.44 square centimeters.

How many more square centimeters is Staci’s rectangle than Brady’s?

• 25.08 square centimeters

• 25.92 square centimeters

• 26.08 square centimeters

• 26.82 square centimeters

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

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

Tags

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

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

Which bar diagram shows the total amount Carter spent on both items?

• 
• 
• 
• 

Tags

CCSS.3.NBT.A.2

CCSS.3.OA.D.8