Add and Subtract Decimals with Models

Which expression is represented in the model?

• 0.32 - 0.17

• 0.49 - 0.32

• 0.32 + 0.17

• 0.49 - 0.17

Tags

CCSS.5.NBT.B.7

What equation matches this model?

• 0.7 - 0.44 = 1.14 
• 1.14 - 0.44 = 0.7
• 1.14 + 0.7 = 0.44
• 0.7 + 0.44 = 1.14

Tags

CCSS.5.NBT.B.7

What is the difference?

• 0.19

• 0.61

• 0.42

• 0.2

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Which expression is being represented in this model?

• 48 - 25

• 0.48 - 0.52

• 0.48 - 0.25

• 0.23 + 0.25

Tags

CCSS.5.NBT.B.7

Jay and Anna weighed their Halloween candy. Jay had 3.45 lbs of candy. Anna had 2.91 lbs of candy. How many pounds of candy did they have together?

• 6.36

• 5.136

• 5.36

• 6.45

Tags

CCSS.6.NS.B.3

Ms. Loredo bought some snacks for for the field trip on Monday. She bought 45.13 oz. bags of chips and 56.9 oz. box cookies. How many ounces of snacks did Ms. Loredo buy?

• 50.82

• 508.2

• 102.03

• 101.103

Tags

CCSS.6.NS.B.3

Brett was downloading two apps onto his iPad. One app was 7.32gb and the other was 8.71gb. How many more gb was the second than the first app?

• 1.71gb

• 16.03gb

• 1.39 gb

• 1.41gb

Tags

CCSS.6.NS.B.3

Solve: 34.6 -1.99

Only type the answer. No words!

Tags

CCSS.6.NS.B.3

What was the first mistake in this solution?

• The numbers are not lined up correctly.

• The students did not add the decimal or place holders.

• The student did not regroup.

• There is no error, it is correct.

Tags

CCSS.5.NBT.B.7

What was the first mistake in this solution?

• The numbers are not lined up correctly.

• The students did not use place holders.

• The student did not regroup.

• Students did not bring down the decimal.

Tags

CCSS.6.NS.B.3