Math 7 - Integer Operations

Adding Integers

100

6+(-4)

2

200

(-3) + 2

-1

300

-5+( -6 )+3

-8

400

-12 + (-4) +( -3)

-19

500

-20 + 3 + (-2 )

-19

Subtracting Integers

100

(-10) - (+2)

-12

200

-5-(-7)

2

300

6-(-4)

10

400

-9 - 4 - 1 - (-2)

-12

500

-4 - (-6) - 2 

0

Multiplying Integers

100

(-3)xx2

-6

200

3 xx (-6)

-18

300

(-7)xx(-7)

49

400

(-6)xx(-7)xx(-1)

-42

500

(-2)xx(-2)xx(-7)

-28

Dividing Integers

100

-15 ÷ 3

-5

200

28 ÷ -7

-4

300

(-48) ÷( -6)

8

400

(-84)/-7

12

500

(-56)/7

-8

Mixed Operations

100

(-3)(-2) + 6

12

200

27/-3+9

0

300

(10)(2) + (3)(-3)

11

400

(10/5)-(36/6)-20

-24

500

3^2-8-12+(-60/3)

-31

Simplifying Expressions

100

-6x + 6 + 2x 

-4x + 6

200

12 + 3x - 8

4 + 3x 

300

-2x + 7y - 10y - 2x

-4x - 3y

400

-3(2x - 8)

-6x + 24

500

2a + 6 + 3c - 2a - 6 - 2c

c or 1c