Percent increase, percent decrease and percent error
Grade 7 Math Worksheet
Circle the best answer, or write your answer on the line.
Kira's town had 360 people at the summer fair. This year the fair had 35% more people, and the lemonade line wrapped around the block. How many people came this year?
Luz's class collected 150 cans in March and 12% more cans in April. How many cans did the class collect in April?
A storm knocked off 36% of the 250 apples on Noah's tree. How many apples are left?
Pia's bunch of grapes weighed 320 grams. Pia ate 45% of it on the hike. How many grams of grapes are left?
Ren's soccer league had 480 players, and 15% moved away over the summer. How many players are in the league now?
A seedling at Zee's school is 30 centimeters tall in April and 75 centimeters tall in July. By what percent did its height increase?
Ari's book club read 15 books last year and 60 books this year, because the new library opened. By what percent did the number of books increase?
Noah estimates that a ball of yarn is 40 meters long, but it is really 50 meters long. What is the percent error of the estimate?
Ren times a race with a stopwatch and reads 84 seconds. The real time is 80 seconds. What is the percent error of the reading?
Tala's bean plant is x centimeters tall. Next week it will be 12% taller. Which expression gives next week's height?
- 0.12x
- x + 0.12
- 1.12x
- 0.88x