Integers Adding

Adding integers with the same sign:

• Subtract

• Add and keep the sign.

• Add and that is it.

• What is adding integers?

Adding integers with different signs

• Subtract and keep the sign of the LARGER number.

• Subtract and keep the number of the smaller signs.

• Adding integers is hard!

• Subtract and do not change the signs!

The Cowboys lost 20 yards on the first play. On the second play, they gained 17 yards. Write an addition expression

• 20 + (-17)

• -20 + -17

• 20 + 17

• -20 + 17

What integer addition equation is being modeled?

• -5 + -3 = -2

• -5 + 2 = -3

• -5 + 3 = -2

• 5 + 3 = 8

An integer problem is modeled on a number line.. Which equation best represents the model? ​ (a)  

• 7 + (-10)=-3

• 7 + (-3) =4

• -3 + 7=10

• 10 + (-3) = 7

The equation ​ ​ (a)   is correct.

• (-3)+5=2

• ​(-3)+5=-2

• ​-3+(-5)=-2

• ​3+(-5)=2

(-23) + 11 =

• -12

• 12

• -34

• 34

An integer problem is modeled on a number line.. Which equation best represents the model? ​ (a)  

• 7 + (-10)=-3

• 7 + (-3) =4

• -3 + 7=10

• 10 + (-3) = 7

(-20) + 41 =

• 21

• -21

• 51

• -51

3 + (-63) =

• -60

• 60

• 66

• -66