Examining Percent Increase And Decrease Math Worksheet - With Answers Page 14
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30Answer Key
Examining Percent Increase and Decrease
Name:
Solve each problem.
A n s w e r s
1) Roger spent 21 minutes on his math homework and 29.4 minutes on his spelling
40
homework. He spent _____ percent more time on his spelling homework.
1.
18
2.
2) A small fruit smoothie is 22 ounces while a large fruit smoothie is 25.96 ounces. The large
30
fruit smoothie is _____% larger.
3.
24
4.
3) Last years phone model had a battery that lasted 15 hours. This year the battery only last
for 10.5 hours. What was the percent the battery life decreased?
26
5.
50
6.
4) In February Janet got a puppy that weighed 12 kilograms. By October the puppy weighed
14.88 kilograms. What was the percent the puppy's weight increased?
26
7.
28
8.
5) A library normally collected $47.00 in fees a month. But in March they collected $59.22.
What is the percent increase in the number of fees collected in March?
46
9.
10
10.
6) In the spring the average score for a division worksheet was 98. But back in the fall the
average score was 49. The fall score was _____% lower than the spring score.
7) Amy's family decided to get rid of their cable TV. Originally they were paying $98.00 for
the TV, internet and phone, but now they're paying $72.52. What was the percent the bill
decreased by?
8) Normally a game costs $40.00. But the new special edition version is going to be $51.20.
This is an increase of _____ percent.
9) At a restaurant the bill came to $82.00. If you leave $119.72, what percent tip is that?
10) Bianca used to live 12 kilometers away from the school, but after she moved she now lives
10.8 kilometers away. She is _____ percent closer to the school.
1-10 90 80 70 60 50 40 30 20 10 0
Math
5
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