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
300
c - 3.4 = 10
c = 6.6
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
300
24 = c ÷ 0.6
c = 14.4
300
Sam is 66 inches tall. That is 3 times the height of his cat. What is the height of his cat?
22 inches
400
Solve:
$12.50 + r = 32.20
r = $19.70
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
400
2.3g = 9.66
g = 4.2
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
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
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
500
w - 22 = 4.68
w = 26.68
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
500
x/4.5=2
x=9
500
What is an example of an inverse operation?
addition and subtraction
multiplication and division