Math worksheet for calculating percentages of numbers.

To solve the problems in the worksheet, we need to calculate the percentages of the given numbers. The formula to find a percentage of a number is:

\[
\text{Percentage of a number} = \left( \frac{\text{Percentage}}{100} \right) \times \text{Number}
\]

Let's solve each problem step by step.

---

Problem 1: 7% of 408

\[
7\% \text{ of } 408 = \left( \frac{7}{100} \right) \times 408 = 0.07 \times 408 = 28.56
\]

Problem 2: 40% of 2

\[
40\% \text{ of } 2 = \left( \frac{40}{100} \right) \times 2 = 0.4 \times 2 = 0.8
\]

Problem 3: 3% of 749

\[
3\% \text{ of } 749 = \left( \frac{3}{100} \right) \times 749 = 0.03 \times 749 = 22.47
\]

Problem 4: 200% of 5

\[
200\% \text{ of } 5 = \left( \frac{200}{100} \right) \times 5 = 2 \times 5 = 10
\]

Problem 5: 90% of 2

\[
90\% \text{ of } 2 = \left( \frac{90}{100} \right) \times 2 = 0.9 \times 2 = 1.8
\]

Problem 6: 60% of 1

\[
60\% \text{ of } 1 = \left( \frac{60}{100} \right) \times 1 = 0.6 \times 1 = 0.6
\]

Problem 7: 15% of 2

\[
15\% \text{ of } 2 = \left( \frac{15}{100} \right) \times 2 = 0.15 \times 2 = 0.3
\]

Problem 8: 2% of 71

\[
2\% \text{ of } 71 = \left( \frac{2}{100} \right) \times 71 = 0.02 \times 71 = 1.42
\]

Problem 9: 6% of 19

\[
6\% \text{ of } 19 = \left( \frac{6}{100} \right) \times 19 = 0.06 \times 19 = 1.14
\]

Problem 10: 8% of 8

\[
8\% \text{ of } 8 = \left( \frac{8}{100} \right) \times 8 = 0.08 \times 8 = 0.64
\]

Problem 11: 75% of 60

\[
75\% \text{ of } 60 = \left( \frac{75}{100} \right) \times 60 = 0.75 \times 60 = 45
\]

Problem 12: 9% of 299

\[
9\% \text{ of } 299 = \left( \frac{9}{100} \right) \times 299 = 0.09 \times 299 = 26.91
\]

Problem 13: 300% of 384

\[
300\% \text{ of } 384 = \left( \frac{300}{100} \right) \times 384 = 3 \times 384 = 1152
\]

Problem 14: 90% of 53

\[
90\% \text{ of } 53 = \left( \frac{90}{100} \right) \times 53 = 0.9 \times 53 = 47.7
\]

Problem 15: 3% of 765

\[
3\% \text{ of } 765 = \left( \frac{3}{100} \right) \times 765 = 0.03 \times 765 = 22.95
\]

Problem 16: 30% of 12

\[
30\% \text{ of } 12 = \left( \frac{30}{100} \right) \times 12 = 0.3 \times 12 = 3.6
\]

Problem 17: 15% of 395

\[
15\% \text{ of } 395 = \left( \frac{15}{100} \right) \times 395 = 0.15 \times 395 = 59.25
\]

Problem 18: 4% of 260

\[
4\% \text{ of } 260 = \left( \frac{4}{100} \right) \times 260 = 0.04 \times 260 = 10.4
\]

Problem 19: 10% of 96

\[
10\% \text{ of } 96 = \left( \frac{10}{100} \right) \times 96 = 0.1 \times 96 = 9.6
\]

Problem 20: 25% of 87

\[
25\% \text{ of } 87 = \left( \frac{25}{100} \right) \times 87 = 0.25 \times 87 = 21.75
\]

Problem 21: 100% of 681

\[
100\% \text{ of } 681 = \left( \frac{100}{100} \right) \times 681 = 1 \times 681 = 681
\]

Problem 22: 70% of 4

\[
70\% \text{ of } 4 = \left( \frac{70}{100} \right) \times 4 = 0.7 \times 4 = 2.8
\]

Problem 23: 40% of 200

\[
40\% \text{ of } 200 = \left( \frac{40}{100} \right) \times 200 = 0.4 \times 200 = 80
\]

Problem 24: 6% of 13

\[
6\% \text{ of } 13 = \left( \frac{6}{100} \right) \times 13 = 0.06 \times 13 = 0.78
\]

Problem 25: 80% of 423

\[
80\% \text{ of } 423 = \left( \frac{80}{100} \right) \times 423 = 0.8 \times 423 = 338.4
\]

Problem 26: 20% of 925

\[
20\% \text{ of } 925 = \left( \frac{20}{100} \right) \times 925 = 0.2 \times 925 = 185
\]

Problem 27: 5% of 8

\[
5\% \text{ of } 8 = \left( \frac{5}{100} \right) \times 8 = 0.05 \times 8 = 0.4
\]

Problem 28: 7% of 24

\[
7\% \text{ of } 24 = \left( \frac{7}{100} \right) \times 24 = 0.07 \times 24 = 1.68
\]

Problem 29: 200% of 97

\[
200\% \text{ of } 97 = \left( \frac{200}{100} \right) \times 97 = 2 \times 97 = 194
\]

Problem 30: 35% of 6

\[
35\% \text{ of } 6 = \left( \frac{35}{100} \right) \times 6 = 0.35 \times 6 = 2.1
\]

---

Final Answers:

\[
\boxed{
\begin{array}{lll}
1. & 28.56 & 2. & 0.8 & 3. & 22.47 \\
4. & 10 & 5. & 1.8 & 6. & 0.6 \\
7. & 0.3 & 8. & 1.42 & 9. & 1.14 \\
10. & 0.64 & 11. & 45 & 12. & 26.91 \\
13. & 1152 & 14. & 47.7 & 15. & 22.95 \\
16. & 3.6 & 17. & 59.25 & 18. & 10.4 \\
19. & 9.6 & 20. & 21.75 & 21. & 681 \\
22. & 2.8 & 23. & 80 & 24. & 0.78 \\
25. & 338.4 & 26. & 185 & 27. & 0.4 \\
28. & 1.68 & 29. & 194 & 30. & 2.1 \\
\end{array}
}
\]