Decimal Operations

Solve.
3.9 + 2.2 = 

• 5.1
• 6.1
• 1.7
• 32.92

Tags

CCSS.5.NBT.B.7

23.4 + 10

• 133.4
• 334
• 3.34
• 33.4 

Tags

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

4.5 + 3.6=

• 7.1

• 8.1

• 9.1

• 10.1

Tags

CCSS.5.NBT.B.7

12.8-5.3=

• 6.5

• 7.5

• 8.5

• 9.5

Tags

CCSS.5.NBT.B.7

What is the rule for adding or subtracting decimals?

• Add first

• Line up the decimals first, then fill in with zeros.

• Move the decimal to the right the total amount of numbers after the decimal.

• Subtract

Tags

CCSS.5.NBT.B.7

9.7 - 3.2 =

• 6.5

• 12.9

• 65

• 1.29

Tags

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

8.65 x  4

• 32.48
• 34.6
• 34.8
• 346

Tags

CCSS.5.NBT.A.2

CCSS.5.NBT.B.7

3.57 x 4.6

• 3.570
• 13.882
• 16.422
• 164.22

Tags

CCSS.5.NBT.A.2

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

7.13 x 5.5 

• 39.215
• 3.9215
• 392.15
• 3921.5

Tags

CCSS.5.NBT.B.7

2.5 x 6.7

• 1.675
• 3.25
• 32.5
• 6.675