Adding and Subtracting Decimals

What is the sum of -1.70+4.65?

• 2.95

• 5.35

• 6.35

• a decimal

Subtract the following:

-9.43-3.34

• -12.77

• 6.09

• 6.90

• 60.09

Which addition equation has the total of 7.29?

• 7.00+7.29
• 4.00+0.29
• 4.62+9.00
• 4.18+3.11

Tags

CCSS.5.NBT.B.7

Which subtraction equation has the answer of 1.03?

• 9.45-8.42
• 8.42-9.45
• 1.00+0.03
• none of the above

Tags

CCSS.5.NBT.B.7

When adding decimals with the same sign you.....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

When adding decimals with different signs you....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

Rewrite the problem as addition.

-5.66 - (-4.1)

• 5.66 + (-4.1)

• -5.66 + 4.1

• -5.66 + (-4.1)

• -5.66 - 4.1

-23.4 - 3.4= 

• -20
• 26.8
• -26.8
• 20

-40 + 15.05= 

• 55.05
• 24.95
• -24.95
• 14.65

5.23 - (-9.1)

• -3.87
• 3.87
• 4.32
• 14.33