y + 45 = 84
y = 39
42 = b - 27
b = 69
Sally's tower is 12 inches taller than Mary's tower. If Sally's tower is 29 inches tall, write an addition equation that you could use to solve for the height of Mary's tower.
29 = m + 12
c - 3.4 = 10
c = 13.4
Lisa bought 27 shirts. That is 3 times the number of shirts that Nick bought. Write a multiplication equation that you can use to find the number of shirts that Nick bought.
3n = 27
24 = c ÷ 0.6
c = 14.4
Sam is 66 inches tall. That is 3 times the height of his cat. Write and solve an equation for the height of Sam's cat.
3h=66
22 inches
Mark bought 24 books more than Terry. If Terry bought 15 books, write a subtraction equation that could be used to find the number of books that Mark bought.
m - 24 = 15
2.3g = 9.66
g = 4.2
Troy is cutting a piece of rope into fourths. If each piece is 16 inches long, write and solve a division equation that you can use to find the length of the entire rope.
r/4=16
64 in.
Harry has $56 more than Paul. If Paul has $32, write and solve a subtraction equation to find out what Harry has.
h - 56 = 32 h = $88
Sara has 78 more songs than Sam on her i-pod. If Sara has 100 songs, write and SOLVE an addition equation that you can use to find the number of songs that Sam has.
s + 78 = 100 s = 22
w - 22 = 4.68
w = 26.68
Kim went to the store and bought 5 books for a total of $18.50. Write and SOLVE a multiplication equation to figure out the amount of each book.
5b = $18.50 b = $3.70
16 = ⅔ z
z = 24
What is an example of an inverse operation?
addition and subtraction multiplication and division