Add and Subtracting Decimals

What is 3.7-2.49?

• 1.0

• 1.11

• 1.21

• 2.21

What is 6.07- 4?

• 3.07

• 2.07

• 1.07

• 3.31

15.6+2.69

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46.2-3.15

• 1.47

• 43.05

• 14.7

• 4.305

17.59-10.21

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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

-40 + 15.05= 

• 55.05

• 24.95

• -24.95

• 14.65

What is the value of 18 - 23.2 ?

• -5.2

• -5.8 

• 5.2

• 5.8