adding integers

25 + -45 =

• 20

• -20

• 70

• 0

Adding integers with the same sign:

• Subtract

• Add and keep the sign.

• Add and that is it.

• What is adding integers?

-1 + 4 + -7 =

• 12

• -12

• -4

• -8

Adding integers with different signs

• Subtract and keep the sign of the LARGER ABSOLUTE VALUE!

• Subtract and keep the number of the smaller signs.

• Adding integers is hard!

• Subtract and do not change the signs!

0 + -44 =

• 44

• 0

• -44

• 77

500 + -500 =

• 1000

• 0

• -500

• 500