Test Review!

Writing Equations

100

A number increased by seven

n + 7 

200

The quotient of five and a number

5/n 

300

The product of a number and eight 

8n

400

Twice a number that is taken away from twenty

20-2n

500

seventy five less than a number split by 2

n/2-75

Substitution

100

a=2, b=3, c= 4

b+a+c

9

200

a=5, b=9, c=10

2+ab

47

300

a=9, b=11, c= 13

ac+b

128

400

n=4, m=8, r=12

rnm+m

392

500

a=2, b=8, c= 16

abc+c/b

258

Writing and Solving

100

A number added to three is twenty-one

3+n=21

n=18

200

Thirty decreased by a number is eight

30-n=8

n=22

300

A number split by three is nine

n/3=9

n=27

400

Twice a number increased by four is sixteen

2n+4=16

n=6

500

The total of trice a number and seven is forty three

3n+7=43

n=12

Solving

100

n+12=38

n=26

200

a-43=17

a=60

300

4b=64

b=16

400

s/9=14

s=126

500

r/15=240

r=16

Word Problems

100

Yesterday Tad had $38 dollars. He did some work for his grandma and now has $72. How much did his grandma pay him?

38+m=72

m=34

200

Stefanie is making cookies for a bake sale. She needs five dozen cookies. If she has already made 24 cookies how many more does she need to make?

24+c=60

c=36

300

Angie has a box of 168 markers at her house. She split the markers into eight colors. If there were the same amount of each color, how many markers would she have of each?

168/8=m

m=21

400

Kim has thirty five cook books in her kitchen. If she wanted to distribute the books out evenly to her five children, how much would each child get?

35/5=c

c=7

500

There were forty seven pencils in the pencil jar. If Ms.McCumber increased the pencils by nine, then shared half with Ms. Bielski how many pencils does Ms.McCumber have now? 

(47+9)/2=p

p=28