CL2.5 Module 0 so far

Adding Integers

100

-5 + 5

0

200

18 + (-8)

10

300

-10 + 8

-2

400

-13 + (-18)

-31

500

-100 + (-12) + 18

-94

Subtracting Integers

100

5 - (-10)

15

200

-10 - 8

-18

300

-18 - (-9)

-9

400

-100 - 17 - (-20)

-97

500

20 - 30 - (-4)

-6

Dividing and Multiplying

100

3(0)

0

200

-3(-9)

27

300

12/ -3

-4

400

8(-5) / 10

-4

500

13(-3)(-2)/6

13

2 step equations

100

2x + 8 = 18

2x + 8 = 18

     -8.      -8

2x        = 10

x = 5

200

-3x + 5 = 20

-3x + 5 = 20

      -5.       -5

-3x       = 15

x = -5

300

-16x + 2 = -30

-16x + 2 = -30

        -2.       -2

-16x.      = -32

x = 2

400

6x + 9 = 18

6x + 9 = 18

     -9.      -9

6x.     = 9

x = 1.5 or 1 1/2

500

13x + 8 = 4 + 4

13x + 8 = 4 + 4

13x + 8 = 8

      -8.     -8

13x = 0

x = 0

Combine Like Terms/ Order of Operations

100

Combine:

-3 + 2x + 10x + 7

12x + 4

or

4 + 12x

200

Combine:

-10x + 13 + 2y + 10x

13 + 2y

or

2y + 13

300

3(2 + 4) + 14/2 - 10

3(2 + 4) + 14/2 - 10

3(6) + 14/2 - 10

18 + 7 - 10

25 - 10

15

400

3 + (9² - 41) + 27/3

3 + (9² - 41) + 27/3

3 + (81 - 41) + 27/3

3 + (40) + 27/3

3 + 40 + 9

52

500

Combine:

4x² + 15x - 6x² - 10x - 27 + 10

-2x² + 5x - 17