Equations

Equations and Solutions

100

d+9=25

d=6,14,16,21

d=16

200

c-8=25

c=17,28,33,35

c=33

300

2y=30

y=10,12,24,36

No Solution

400

150÷h=50

h=2,3,4,5

H=3

500

f-13.3=28.9

f=38.7,42.2,45.8,51.4

f=42.2

Equations +/-

100

x-17=13

x=30

200

r + 1.23 = 99.9

r = 98.67

300

z - 31.3 = 17.6

z  = 48.9

400

5/8 + w = 3/4

w = 1/8

500

p - 1/4 = 2 2/3

p = 2 11/12

Equations ÷/x

100

t÷3=10

t=30

200

11.7x = 290.16

x = 24.8

300

w ÷ 1.2=.9

x=1.08

400

y ÷ 3/4 = 11

y = 8 1/4

500

3/8 x= 18

x=  48

Write Equations(double points)

100

A pan balance has 3 cubes on one pan and 11 cubes on the other pan. Mary thinks she should add 7, 8, 9, or 10 cubes to make the pans balance. How can you use the equation 3+c=11 to find the number of cubes Mary should add?

c=8

200

Peter had t seashells. After he bought 8 more seashells, she had 24 seashells. Write and solve an equation to find the number of seashells Peter started with.

t+8=24

t=16

300

John is 18 years older than James. James is 34. Write and solve an equation to find John's age, y.

y-18=34

y=52

400

In 12 weeks Thomas earns $4,500 doing yard work. He earns the same amount each week. Let m stand for the amount earned each week. Write an equation and solve how much does Thomas make in 1 week?

12m=4,500

m=375

500

In October, Philip's school used b pounds of sand to protect the building against flooding during different tropical storms. Each bag contains 40 lbs of sand. They used 123 bags of sand. Write and solve an equation to find how much sand was used.

b ÷ 40 = 123

b = 4920

Mr. Davis

100

What is Mr. Davis' favorite drink?

Coffee

200

What shoe does Mr. Davis wear every Friday?

Crocs

300

What sport does Mr. Davis coach?

Wrestling

400

How many kids does Mr. Davis have? (bonus points for names)

2 kids. Rudy and Leeland

500

How old is Mr. Davis?

28 years old.