Finding Percentage Worksheets - Free Printable

Let's solve each problem on the "Percentage of Number Worksheet" step by step.

To calculate X% of a number, we use the formula:

$$
\text{Percentage of a number} = \frac{X}{100} \times \text{Number}
$$

---

1a. 20% of 50

$$
\frac{20}{100} \times 50 = 0.2 \times 50 = 10
$$
✔ Answer: 10

---

1b. 50% of 80

$$
\frac{50}{100} \times 80 = 0.5 \times 80 = 40
$$
✔ Answer: 40

---

2a. 50% of 100

$$
\frac{50}{100} \times 100 = 0.5 \times 100 = 50
$$
✔ Answer: 50

---

2b. 70% of 70

$$
\frac{70}{100} \times 70 = 0.7 \times 70 = 49
$$
✔ Answer: 49

---

3a. 80% of 30

$$
\frac{80}{100} \times 30 = 0.8 \times 30 = 24
$$
✔ Answer: 24

---

3b. 60% of 30

$$
\frac{60}{100} \times 30 = 0.6 \times 30 = 18
$$
✔ Answer: 18

---

4a. 30% of 30

$$
\frac{30}{100} \times 30 = 0.3 \times 30 = 9
$$
✔ Answer: 9

---

4b. 10% of 10

$$
\frac{10}{100} \times 10 = 0.1 \times 10 = 1
$$
✔ Answer: 1

---

5a. 20% of 80

$$
\frac{20}{100} \times 80 = 0.2 \times 80 = 16
$$
✔ Answer: 16

---

5b. 80% of 10

$$
\frac{80}{100} \times 10 = 0.8 \times 10 = 8
$$
✔ Answer: 8

---

6a. 20% of 0

$$
\frac{20}{100} \times 0 = 0.2 \times 0 = 0
$$
✔ Answer: 0

---

6b. 60% of 90

$$
\frac{60}{100} \times 90 = 0.6 \times 90 = 54
$$
✔ Answer: 54

---

7a. 10% of 70

$$
\frac{10}{100} \times 70 = 0.1 \times 70 = 7
$$
✔ Answer: 7

---

7b. 70% of 0

$$
\frac{70}{100} \times 0 = 0.7 \times 0 = 0
$$
✔ Answer: 0

---

8a. 20% of 60

$$
\frac{20}{100} \times 60 = 0.2 \times 60 = 12
$$
✔ Answer: 12

---

8b. 50% of 50

$$
\frac{50}{100} \times 50 = 0.5 \times 50 = 25
$$
✔ Answer: 25

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✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 1a | 10 |
| 1b | 40 |
| 2a | 50 |
| 2b | 49 |
| 3a | 24 |
| 3b | 18 |
| 4a | 9 |
| 4b | 1 |
| 5a | 16 |
| 5b | 8 |
| 6a | 0 |
| 6b | 54 |
| 7a | 7 |
| 7b | 0 |
| 8a | 12 |
| 8b | 25 |

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🔍 Explanation:

- Percent means "per hundred", so converting a percentage to a decimal involves dividing by 100.
- Then multiply that decimal by the given number.
- For example, 20% = 0.20, so 20% of 50 = 0.20 × 50 = 10.

This method works for all percentage problems like these.

Let me know if you'd like this in printable format or with explanations for kids!