Grade 7 · Math

7th grade Percent of a number worksheet

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Percent of a number

Grade 7 Math Worksheet - Challenge Me

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

Milo's class library has 150 books. 60% of the books are fiction, and 20% of the fiction books are about animals. How many books are fiction about animals?
Zee's garden has 160 flowers. 30% are red and 12.5% are yellow. How many flowers are neither red nor yellow?
Ari has 140 balloons for the party. 35% are red and 45% are blue. How many balloons are neither red nor blue?
Kira's class folded 30 paper boats, which is 60% of its goal. How many boats is 70% of the goal?
160 students came to the book fair at Jun's school, which is 125% of the number expected. How many students is 25% of the number expected?
5 of the pencils in Esme's bin are broken, which is 2.5% of the pencils. How many pencils is 12.5% of the pencils in the bin?
Read this first
Ratio table
Percent Amount
1.5 9
2.5 15
4.5 ?
The table shows percents of the students in Noah's school and how many students that is. How many students are 4.5% of the school?
8.
A vine at Pia's school had 68 leaves in spring. Now it has 198% as many leaves. Which is the best estimate of the leaves now?
- 140
- 1400
- 70
9.
Zee's school has 398 students, and 0.26% of them forgot their lunch today. Which is the best estimate of how many forgot?
- 400
- 10
- 1
10.
Ari's town library has 3980 books, and 2.4% of them are checked out. Which is the best estimate of the books checked out?
- 4000
- 100
- 1000

Percent	Amount
1.5	9
2.5	15
4.5	?

7th grade Percent of a number worksheet – printable — Print: 1 2 3 4 5 6

About this worksheet

Percent of a number. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

I can find a percent of an amount when the percent is more than 100 (150% of 40) or less than 1 (0.5% of 900).
I can find the whole from a part and its percent, and the percent from a part and a whole, with the same kinds of percents.
I can do two steps in a row: a percent of a percent, "neither" groups, and a part found from another part. I can also give a quick estimate with a benchmark percent.

Standard: 7.RP.A.3

Words to know

percent: Out of 100. 150% means 150 out of every 100.

the 100 row: The table row for the whole, or the starting amount. It is always 100%.

over 100%: More than the whole. 150% of 40 is 60, bigger than 40.

1% row: The row where the percent is 1. Divide the whole by 100 to get it.

benchmark: An easy percent to work with: 10%, 25%, 50%, 75%.

estimate: A quick answer that is close, found by rounding first.

Common mistakes

Your child found only the part above 100% and stopped, instead of the whole amount.

Your child found a handy row of the table, such as 10% or 1%, and stopped there.

Your child moved the decimal point one place instead of two when changing a percent into a decimal (or a decimal into a percent).

What to say

Ask: if something grows to 150% of its size, is it bigger or smaller than before? Then add the whole back on.

Ask: is this row the percent the question asked about?

Ask: 1% is 1 out of 100, so what decimal is that?

Questions parents ask

What is the most common mistake with percent of a number?

Your child found only the part above 100% and stopped, instead of the whole amount.

How can I help my child with percent of a number?

Ask: if something grows to 150% of its size, is it bigger or smaller than before? Then add the whole back on.

Are these 7th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 7 math

See all grade 7 math

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