Adding Integers

True or False: Integers are positive and negative whole numbers.

• True

• False

When we add integers with the same sign we:

• take the absolute value of each, subtract the smaller from the larger, and take the sign of the larger number.

• Add and keep the sign

-2 + (-3) =

• 5

• -5

• 1

• -1

15 + 2=

• 17

• -17

• 13

• -13

-11 + (-4) =

• -7

• 7

• -15

• 15

-30 + (-15)=

• -45

• 45

• 25

• -25

When we add integers with DIFFERENT signs, we

• subtract the smaller absolute value from the larger absolute value, and take the sign of the larger absolute value.

• add and keep the sign

-2 + 9=

• -11

• 11

• -7

• 7

-18 + 10=

• 8

• -8

• -28

• 28

10 + (-4) =

• 6

• -6

• 14

• -14