Solving One-step Equations

Inverse Operations

100

What's is the Inverse Operation of Subtraction

Addition

200

What is the Inverse Operation of Addition

Subtraction

300

What is the Inverse Operation of Division

Multiplication

400

What is the Inverse Operation of Multiplication

Division

500

What does the word inverse mean?

Opposite or to undo something

Addition Equations

100

34+x=40

x=6

200

a+13=24

a=11

300

-3+b=6

b=9

400

c+56=-200

c=-256

500

What are the steps for solving equations that have addition?

1. Rewrite the problem 

2. Subtract the number with the variable on both sides

3. Write your X=

4. Put your answer back into the problem and check it

Subtracting Equations

100

j-34=200

j=234

200

h - 46=898

h=944

300

n-6=15

n=21

400

j - 4=-16

j=-12

500

What are the steps for solving equations that have subtraction?

1. Rewrite the problem 

2. Add the number with the variable on both sides

3. Write your X=

4. Put your answer back into the problem and check it

Multiplying Equations

100

r/6=390

r=2,340

200

t/30=6

t=180

300

r/3500=70

r=245,000

400

x/475=95

x=45,125

500

What are the steps for solving equations that have multiplication?  

1. Rewrite the problem 

2. Divide the number with the variable on both sides

3. Write your X=

4. Put your answer back into the problem and check it

Division Equations

100

7h=140

h=20

200

4x=345

x=86.25

300

3h=57

h=19

400

5c=500

c=100

500

What are the steps for solving equations that have division?

1. Rewrite the problem 

2. Multiply the number with the variable on both sides

3. Write your X=

4. Put your answer back into the problem and check it