Percent of a number

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Kira's class raked 180 bags of leaves last fall. This fall the class raked 165% of that after one very windy week. How many bags did the class rake this fall?

   297
2. 2.

   Milo's class bakes 640 cookies for a school event. 12.5% of the cookies have chocolate chips, and those vanish first. How many cookies have chocolate chips?

   80
3. 3.

   Noah's school has 360 students, and 2.5% of them are new this month. How many students are new?

   9
4. 4.

   Pia weighs 900 grams of trail mix, and 0.5% of it is salt. How many grams of salt are in the trail mix?

   4.5
5. 5.

   Ren's sunflower is 70 centimeters tall, which is 140% of its height two weeks ago. How tall was the sunflower two weeks ago?

   50
6. 6.

   390 runners joined Tala's town race this year, which is 130% of last year's runners. How many runners joined last year?

   300
7. 7.

   Zee's paper chain is 224 inches long now. That is 175% of its length yesterday, and the glue bottle is nearly empty. How long was the chain yesterday?

   128
8. 8.

   3 of the seeds in Ari's garden never sprouted, which is 0.5% of all the seeds planted. How many seeds did Ari plant?

   600
9. 9.

   Luz's class recycled 30 bottles in May and 51 bottles in June. June's bottles are what percent of May's bottles?

   170
10. 10.

    Milo's school has 600 students, and 3 of them forgot their backpacks today. What percent of the students forgot their backpacks?

    0.5