Adding Integers

-8 + (-8) =

• 16

• -16

• 0

• -0

-12 + 2 =

• 14

• -14

• -10

• 10

-7 + 10 =

• 3

• -17

• -3

• 17

-5 + 5 =

• -10

• 10

• 0

• -0

Rule: Same sign means ___________. Ex. -3 + (-2)

• add and take the sign of the larger number

• subtract and keep the sign

• add and keep the sign

• subtract and take the sign of the larger number

Rule: Different signs mean ____. Ex. -8 + 4

• Subtract and take the sign of the smaller number

• Add and make the sign positive

• Subtract and take the sign of the larger number

• Add and don't worry about the sign

-4 + 2 =

• -2

• 2

• 6

• -6

Which two are WRONG:

• -2 + 2 = 0

• -5 + (-2) = 7

• -1 + (-10) = -11

• -4 + 3 = 1

-22 + (-10) =

• -12

• 12

• 32

• -32

-100 + 5

• 105

• -105

• -95

• 95