Let's solve each problem step by step. To find the
percentage of a number, we use the formula:
$$
\text{Percentage of a number} = \frac{\text{Percentage}}{100} \times \text{Number}
$$
We'll apply this to each question.
---
1. 20% of 40
$$
\frac{20}{100} \times 40 = 0.2 \times 40 = 8
$$
2. 30% of 100
$$
\frac{30}{100} \times 100 = 0.3 \times 100 = 30
$$
3. 32% of 50
$$
\frac{32}{100} \times 50 = 0.32 \times 50 = 16
$$
4. 60% of 20
$$
\frac{60}{100} \times 20 = 0.6 \times 20 = 12
$$
5. 10% of 30
$$
\frac{10}{100} \times 30 = 0.1 \times 30 = 3
$$
6. 25% of 80
$$
\frac{25}{100} \times 80 = 0.25 \times 80 = 20
$$
7. 15% of 60
$$
\frac{15}{100} \times 60 = 0.15 \times 60 = 9
$$
8. 35% of 180
$$
\frac{35}{100} \times 180 = 0.35 \times 180 = 63
$$
9. 64% of 100
$$
\frac{64}{100} \times 100 = 0.64 \times 100 = 64
$$
10. 40% of 50
$$
\frac{40}{100} \times 50 = 0.4 \times 50 = 20
$$
---
11. 85% of 102
$$
\frac{85}{100} \times 102 = 0.85 \times 102 = 86.7
$$
12. 10% of 200
$$
\frac{10}{100} \times 200 = 0.1 \times 200 = 20
$$
13. 70% of 30
$$
\frac{70}{100} \times 30 = 0.7 \times 30 = 21
$$
14. 65% of 20
$$
\frac{65}{100} \times 20 = 0.65 \times 20 = 13
$$
15. 95% of 100
$$
\frac{95}{100} \times 100 = 0.95 \times 100 = 95
$$
16. 15% of 200
$$
\frac{15}{100} \times 200 = 0.15 \times 200 = 30
$$
17. 20% of 80
$$
\frac{20}{100} \times 80 = 0.2 \times 80 = 16
$$
18. 55% of 100
$$
\frac{55}{100} \times 100 = 0.55 \times 100 = 55
$$
19. 18% of 250
$$
\frac{18}{100} \times 250 = 0.18 \times 250 = 45
$$
20. 45% of 80
$$
\frac{45}{100} \times 80 = 0.45 \times 80 = 36
$$
---
✔ Final Answers:
1.
8
2.
30
3.
16
4.
12
5.
3
6.
20
7.
9
8.
63
9.
64
10.
20
11.
86.7
12.
20
13.
21
14.
13
15.
95
16.
30
17.
16
18.
55
19.
45
20.
36
---
✔ Explanation Summary:
To find a percentage of a number, convert the percentage to a decimal (divide by 100) and multiply it by the number. This method works for all percentage problems like these.
Let me know if you'd like a printable version or explanation with visual models!
Parent Tip: Review the logic above to help your child master the concept of free percentage worksheet.
