Simplifying Expressions
Reverse Operations
One-Step Equations
Two-Step Equations
Word Problems
100

6 • 7

42

100

What is reverse operation of Addition?

Subtraction

100

h + 3 = 5

h = 2

100

3k + 2 = 11

k = 3

200

4 + 5 - 3 • 8

-15

200

What is the reverse operation of Division?

Multiplication

200

g/2 = -4

g = -8

200

-5y - 1 = 9

y = -2

300

3(4x + 3)

12x + 9

300

If I see a two-step equation with Subtraction and Division which one should I reverse first?*

Subtraction

300

3x = 12

x = 4

300

3 + f/2 = 15

f = 24

400

5x + 7 - 3x + 9

2x + 16

400

What is the last step in the reverse order of operations?

Parenthesis

400

-9c = -18

c = 2

400

5 + d/3 = 23

d = 54

500

-8x2, if x = 3 

-72

500

What is the reverse operation of an exponent of 2?

A Square Root

500

x2 = 25

x = 5

500

(j-4)/5 = -4

j = -16

500

Chance is saving his money to buy GTA6. He has $30 dollars saved already. He needs $90 dollars to buy the game. On the side, he mows lawns for $15 dollars per lawn. How many lawns does he need to mow to be able to buy the game?

He needs to mow 4 lawns.