Addition Equations

Subtraction Equations

Multiplication Equations

Division Equations

Word Problems

100

The inverse of addition.

What is Subtraction?

100

The inverse of Subtraction.

What is Addition?

100

The inverse of multiplication.

What is Division?

100

The inverse of division.

What is Multiplication?

100

Write an equation to model the word problem.

Jenny wants to buy an MP3 player that costs $30.98. How much change does she receive if she gives the cashier $40?

30.98 + x = 40

200

x + 5 = 14

x = 9

200

x - 5 = 8

x = 13

200

2x = 12

x = 6

200

x/2 = 5

x = 10

200

Write an equation to model the word problem and solve.

How many boxes of envelopes can you buy with $12 if one box costs $3?

3x = 12

x = 4

300

32 = 15 + x

x = 17

300

12 = x - 2

x = 14

300

14x = 84

x = 6

300

x/12 = 4

x = 48

300

Write an equation to model the word problem.

Last Friday Trevon had $29. Over the weekend he received some money for cleaning the attic. He now has $41. How much money did he receive?

29 + x = 41

400

-10 + x = -6 + 2

x = 6

400

x - 6 + 12 = 17

x = 11

400

-10x + x = 27

x = -3

400

x/6 = -4

x = -24

400

Write an equation to model the word problem.

How many packages of diapers can you buy with $40 if one package costs $8?

8x = 40

x = 5

500

-7 + 9 + x = -4 - 2

x = -8

500

x - 4 = -6 - 10

x = -12

500

-3x - 5x = -70 + 6

x = 8

500

x/-9 = -5 - 2

x = 63

500

Write an equation to model the word problem and solve.

At a restaurant, Mike and his three friends decided to divide the bill evenly. If each person paid $13 then what was the total bill?

x/3 = 13

OR x/13 = 3

x = 39

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