One-Step Equations

Addition

100

g + 5 = 8

g = 3

200

-6 = x + 5

x = -11

300

y+1/2=4

y = 

3 1/2

400

-8 + n = 10

n = 18

Subtraction

100

r - 3 = 10

r = 13

200

b - 8 = -4

b = 4

300

t - 3.4 = -7.8

t = -4.4

400

x - (-10) = 20

x = 10

Multiplication

100

2p = 10

p = 5

200

7c = -21

c = -3

300

-5v = -30

v = 6

400

10f = -3.5

f = -0.35

Division

100

n/5 = 5

n = 25

200

11=b/2

b=22

300

y/7=-2

y = -14

400

x/3=1/5

x = 3/5

Word Problems!

100

Identify which equation matches the word problem.

Lydia is cooking muffins. The recipe calls for 7 cups fo sugar. She already has put in 2 cups. How many more cups does she need to put in?

a. c + 2 = 7

b. c - 2 = 7 

c. 2c = 7

d. c/2 = 7

a. c + 2 = 7

200

How many packages of diapers can you buy with $40 if one package cost $16?

a. p + 16 = 40

b. p - 16 = 40

c. 16p = 40

d. p/16 = 40

c. 16p = 40

300

After paying $8.12 for a burger, Santi has $27.10. How much money did he have before buying the burger? 

a. m + 8.12 = 27.10

b. m - 8.12 = 27.10

c. 8.12m = 27.10

d. m/8.12 = 27.10

b. m - 8.12 = 27.10

400

Identify which equation matches the word problem:

At a restuarant, Timyris and her 3 friends decided to divide the bill evently. If each person paid $13, then what was the total bill?

a. 3b = 13

b. b/3 = 13

c. 4b = 13

d. b/4 = 13

d. b/4 = 13