To find the percentage of a number, you can think of "percent" as "out of 100." A simple way to solve these is to turn the percentage into a decimal and multiply it by the number.
How to convert percent to decimal:
Move the decimal point two places to the left.
* $15\% = 0.15$
* $25\% = 0.25$
* $10\% = 0.10$ (or just $0.1$)
Then, multiply that decimal by the number given.
Here are the step-by-step calculations for each problem:
Column 1
1.
$15\%$ of $80$
* $0.15 \times 80 = 12$
2.
$25\%$ of $40$
* $25\%$ is the same as $\frac{1}{4}$. One quarter of $40$ is $10$.
* $0.25 \times 40 = 10$
3.
$30\%$ of $90$
* $0.30 \times 90 = 27$
4.
$40\%$ of $75$
* $0.40 \times 75 = 30$
5.
$20\%$ of $150$
* $20\%$ is $\frac{1}{5}$. $150 \div 5 = 30$.
* $0.20 \times 150 = 30$
6.
$35\%$ of $10$
* $0.35 \times 10 = 3.5$
7.
$60\%$ of $60$
* $0.60 \times 60 = 36$
8.
$25\%$ of $60$
* $25\%$ is $\frac{1}{4}$. $60 \div 4 = 15$.
* $0.25 \times 60 = 15$
9.
$10\%$ of $33$
* To find $10\%$, just move the decimal one spot to the left.
* $3.3$
10.
$90\%$ of $200$
* $0.90 \times 200 = 180$
Column 2
11.
$85\%$ of $108$
* $0.85 \times 108 = 91.8$
12.
$40\%$ of $88$
* $0.40 \times 88 = 35.2$
13.
$15\%$ of $68$
* $0.15 \times 68 = 10.2$
14.
$55\%$ of $28$
* $0.55 \times 28 = 15.4$
15.
$30\%$ of $480$
* $0.30 \times 480 = 144$
16.
$27\%$ of $235$
* $0.27 \times 235 = 63.45$
17.
$44\%$ of $97$
* $0.44 \times 97 = 42.68$
18.
$62\%$ of $82$
* $0.62 \times 82 = 50.84$
19.
$47\%$ of $67$
* $0.47 \times 67 = 31.49$
20.
$82\%$ of $124$
* $0.82 \times 124 = 101.68$
Final Answer:
1. 12
2. 10
3. 27
4. 30
5. 30
6. 3.5
7. 36
8. 15
9. 3.3
10. 180
11. 91.8
12. 35.2
13. 10.2
14. 15.4
15. 144
16. 63.45
17. 42.68
18. 50.84
19. 31.49
20. 101.68
Parent Tip: Review the logic above to help your child master the concept of percents of a number worksheet.
![Free Printable Percent Of A Number Worksheets [PDF] Brighterly](/images2/percents-of-a-number-worksheet/percents-of-a-number-worksheet-27.jpg)
