6th Grade Math Review Chapter 7 - Equations

Addition Equations

100

29 + b = 42

b = 13

200

19 = n + 5.2

n = 13.8

300

Sally's tower is 12 inches taller than Mary's tower. If Sally's tower is 29 inches tall, write an equation that you could use to solve the height of Mary's tower.

29 = m + 12

400

Solve: $12.50 + r = 32.20

r = $19.70

500

Sara has 78 songs more than Sam on her i-pod. If Sam has 22 songs, write and SOLVE an equation that you can use to find the number of songs that Sara has.

s - 78 = 22 s = 100 songs

Subtraction Equations

100

32 = m - 7

m = 39

200

w - 14 = 33

w = 47

300

c - 3.4 = 10

c = 6.6

400

Mark bought 24 books more than Terry. If Terry bought 15 books, write an equation that could be used to find the number of books that Mark bought.

m - 24 = 15

500

w - 22 = 4.68

w = 26.68

Multiplication Equations

100

5p = 30

p = 6

200

6p = 36

p = 6

300

Lisa bought 27 shirts. That is 3 times the number of shirts that Nick bought. Write an equation that could solve the number of shirts that Nick bought.

3n = 27

400

2.3g = 9.66

g = 4.2

500

Kim went to the store and bought 5 books for a total of $18.50. Write and SOLVE an equation to figure out the amount of each book.

5b = $18.50 b = $3.70

Division Equations

100

b ÷ 12 = 12

b = 144

200

9 = h ÷ 4

h = 36

300

24 = c ÷ 0.6

c = 14.4

400

For every quarter spent, Sammy gets 10 beads to make a necklace with. She has gotten 120 beads. Write an equation to find the number of quarters she has spent.

10q = 120

500

16 = ⅔ z

z = 24

Two-Step Equations

100

5y - 14 = 6

y = 4

200

9m + 11 = 29

m = 2

300

Twelve less than seven times a number is 23. Find the number.

5

400

Harry has $56 more than Paul. If Paul has $32, write and solve an equation to find out what Harry has.

h - 56 = 32 h = $88

500

Luigi is baking chicken and the preparation time is 10 minutes, which is one fourth of the baking time. Write and solve a division equation to find the baking time.

b/4 = 10

40 minutes