Integer Review

Addition

100

9 + (-5)

4

200

-8 + (-3)

-11

300

-10 + 13

3

400

-9 + 21

12

500

-12 + (-13)

-25

Subtraction

100

-5 -5 

-10

200

3 - 12

-9

300

-6 - 10

-16

400

4 - 12

-8

500

-12 - 17

-29

Negatives everywhere

100

-3 - (-2)

-1

200

3 - (-5)

8

300

-12 - (-4)

-8

400

14 - (-7) 

21

500

-7 - (-3) - 1

-5

Rewrite as subtraction

100

5 + (-3)

5 - 3

200

-8 + (-4)

-8 - 4

300

-12 + 20

-12 - (-20)

400

-18 + (-35)

-18 - 35

500

-15 + 50

- 15 - (-50)

Rewrite as addition

100

-5 - 8

-5 + -8

200

10 - (-4)

14

300

-11 - (-9)

-11 + 9

400

- 20 - (-84)

-20 + 84

500

-15 - (-20) - 5

-15 + 20 + 5