SIMPLE EQUATIONS

Addition Equations

100

x + 18 = 24

x = 6

200

23 = h + 11

h = 12

300

54 = m + 9

m = 45

400

c + 8 = 11

c = 3

500

564 = k + 21

k = 543

Subtraction Equations

100

z - 7 = 11

z = 18

200

14 = m - 5

m = 19

300

72 = g - 20

g = 92

400

c - 41 = 16

c = 57

500

3,761 = y - 5,740

y = 9,501

Writing Equations

100

When Sean stands on a box he is 10 ft. tall. If the box is 4 ft tall, WRITE and SOLVE an addition equation to find Sean's height.

Equation- 4 + x = 10 OR x + 4 = 10 Solution- x = 6 ft tall

200

Felise has $39.00. She has 8 less that her brother. WRITE and SOLVE a subtraction equation to find how much money her brother has.

Equation- x - 8 = 39 Solution- x = $47.00

300

If b - 10 = 5, what is the value of b + 6?

21

400

Devon is 13 years old. This is four years younger than his brother Todd. WRITE and SOLVE a subtraction equation to find Todd's age.

Equation- x - 4 = 13 Solution- x = 17 years old

500

It takes 43 facial muscles to frown. This is 26 more muscles than is takes to smile. WRITE and SOLVE an addition equation to find the number of muscles it takes to smile.

Equation- 26 + x = 43 Solution- x = 17 muscles

Simplify Expressions

100

4a + 2a + 5 -2b

6a + 5 - 2b

200

-3c + 4c+ 8a - 3a

c + 5a

300

9c - 13c + 4a -5b

-6c + 4a - 5b

400

6t - 5t + 7a - 3a

t + 4a

500

15c + 12 + 9c -3

24c + 9

Two Step Equations

100

2n + 7 = -41

What is -24?

200

82 = -13n + 4

What is -6?

300

 -8=-12+k/5 

What is 20?

400

-2=(-14+x)/5

What is 4?

500

-10(a - 14) = 240

What is -10?