7th Grade Math Review

Integers

100

5  + (-5)

0

200

- 18 + 10

-8

300

-22 - 18

-40

400

-12(-12)

144

500

-2(2)(-1)(1)(-1)

-4

Word Problems

100

Marie weighs 84 pounds. Debra weighs 23 pounds. How much heavier is Marie than Debra? 

61 pounds

200

Ruth has 2 boxes of oranges. Each box holds 69 oranges. How many oranges does Ruth have? 

138 oranges

300

Each child has 41 erasers. If there are 7 children, how many erasers are there in total? 

287 erasers

400

I have 162 stickers to pass out between 32 students. How many stickers does each student get? 

5 stickers

500

Ms. Rengulbai bought 5 boxes of 20 pencils each. Ms. Brickner borrows 15 pencils. How many pencils does Ms. Rengulbai have left? 

85 pencils

Order of Operations

100

9 + 12 / 6

11

200

5 + (3 - 2)

6

300

12 + 3 (4+1)

27

400

10/(-5)(2)-1 

4

500

2+(4-2)²+5(3)/3

11

Combining Like Terms

100

6(j+4)

6j+24

200

10c - 11c + 3 - 3

-1c or -c

300

s+4(s-1)+11

5s + 7

400

14(2k - 2) -8k

20k - 28

500

1/5 (5e+15)

I will rewrite on the board

e + 3

Equations

100

x + 10 = 12

x = 2

200

t + 5 = -7

t = -12

300

2u + 0.5 = 8.5 

u = 4

400

6k - 6 = 12

k=3

500

e/9 + 1 = 1

e = 0