3–14
Name
Date
Work Backward
Work backward to solve each problem. Show your work.
Kareem bought some bottles of water. He drank 3 of the bottles. Then he
1.
bought 5 more bottles and drank 2 of those. He has 4 bottles left. How many
bottles did he have at the start?
Katy weighed a bag of grapes. She added 2 pounds of grapes to the bag. After
2.
she took out 3 pounds of grapes the bag weighed 4 pounds. How much did
the bag of grapes weigh at the start?
Amy spent $6 for a sailboat kit and $4 for markers at a craft store. Her dad
3.
gave her $5. Then Amy had $7. How much money did Amy have when she
arrived at the craft store?
At 7
.
. there are 11 boats in the harbor, 5 more than there were at 5
.
.
P
M
P
M
4.
At 3
.
. there were half as many boats as there were at 5
.
. How many boats
P
M
P
M
were there at 3
.
.?
P
M
Make Up Your Own Write your own word problem that can be solved by
5.
working backward and then solve it.