Operations with Integers

Positive - Negative

100

16 - (-2)

18

200

5 - (-18)

23

300

12 - (-2) =

14

400

14 - (-6)

20

500

402 - (-221)

623

Negative - Positive

100

-10 - 5

-15

200

-14 - 24

-38

300

-5 - 10 =

-15

400

-45 - 100 

-145

500

- 245 - 8

-253

Multiplying +/- Integers

100

-5 x 2

-10

200

Positive x Negative 

a) positive

b) negative

b) negative

300

Negative x Negative 

a) positive

b) negative

a) positive

400

(-45)(-10)

450

500

21(-15)

-315

Positive + Negative

100

15 + (-5)

10

200

22 + (-44)

-22

300

105 + (-46)

59

400

(-16) + 15

-1

500

(-546) + 800

254

Dividing +/- Integers

100

- 10/-2

5

200

Negative / Positive 

a) positive

b) negative

b) negative

300

negative / negative

a) positive

b) negative

a) positive

400

-44/2

-22

500

-56/8

-7