Percent increase, percent decrease and percent error
Grade 7 Math Worksheet
Circle the best answer, or write your answer on the line.
Milo's sailing club sailed 240 miles last summer. This summer it sailed 45% more miles. How many miles did the club sail this summer?
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?
Tala bikes 60 miles one week and 75 miles the next week. By what percent did the distance increase?
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?
Bo's town had 50 people at a parade last year and 60 people this year. By what percent did the crowd increase?
Esme's water glass had 50 ounces of water in the morning and 40 ounces at lunch. By what percent did the water decrease?
Pia weighs a rock and reads 52 grams on a scale. The rock's real mass is 50 grams. What is the percent error of the reading?
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?
x is the number of pages Ari had left to read. After a long evening, Ari has 15% fewer pages left. Which expression gives the pages left now?
- 1.15x
- 0.15x
- 0.85x
- x − 0.15