Adding and Subtracting Positive and Negative Numbers with Decimals

Keep Change Change" is used when we ________.

• add integers

• subtract integers

• add the opposite

• multiply integers

-7.79 + 5.4

• 4.61

• -2.19

• -2.39

• 2.11

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

-1.3 + 3.6 = ?

• 2.3

• -2.3

• 4.9

• -4.9

9.01 - (-4.09)

• 13.10

• 4.82

• -13.00

• 5.02

-2.5 + (-2.5)

• -5

• 0

• 5

4.5 - 18.6

• -14.1

• 14.1

• 23.1

• -23.1

-5.7 + 0.9

• 2.1

• -4.8

• -8.3

• -10.7

7.6 - (-6.5)

• 11.8

• 10

• 16.3

• 14.1