Add Decimals Model

What addition problem Could this model represent?

• 0.30 + 0.15 = 0.45

• 0.003 + 0.15 = 0.018

• 0.20 + 0.20 = 0.40

• 0.3 + 1.5 = 1.8

Tags

CCSS.5.NBT.B.7

What does the model represent?

• 9.10

• 0.09

• 0.9

• 0.99

Tags

CCSS.4.NF.C.6

Which decimal represents the amount shaded on the models?

• 183

• 1.83

• 1.083

• 0.83

Tags

CCSS.4.NF.C.6

2.55 + 5.6

• 8.15

• 8.25

• 7.15

• 7.25

Tags

CCSS.6.NS.B.3

When using the standard algorithm to ADD or SUBTRACT decimals, do the decimals have to be lined up?

• Yes

• No

• Maybe so...😜

Tags

CCSS.6.NS.B.3

Estimate the sum.

2.7 + 3.8 =

• 7

• 20

• 5

• 10

Estimate the sum.

8.1 + 3.6 + 7.8 =

• 30

• 50

• 20

• 10

Estimate the sum.

3.8 + 4.2 + 2.2 =

• 30

• 50

• 20

• 10

• 5.678

• 5.289

• 5.598

• 5.998

Tags

CCSS.5.NBT.B.7

Tags

CCSS.6.NS.B.3