Question

percentage of number worksheet
calculate the percentages.
1 a. 10% of 0\t1 b. 10% of 16
2 a. 70% of 38\t2 b. 50% of 36
3 a. 80% of 28\t3 b. 70% of 48
4 a. 30% of 6\t4 b. 20% of 36
5 a. 20% of 22\t5 b. 80% of 36
6 a. 80% of 6\t6 b. 20% of 44
7 a. 70% of 8\t7 b. 60% of 22
8 a. 90% of 12\t8 b. 80% of 22

Explanation:

Step1: Recall the formula for percentage of a number

To find \( x\% \) of a number \( n \), we use the formula \( \frac{x}{100} \times n \).

Step2: Calculate 1a: 10% of 0

Using the formula, \( \frac{10}{100} \times 0 = 0.1 \times 0 = 0 \).

Step3: Calculate 1b: 10% of 16

\( \frac{10}{100} \times 16 = 0.1 \times 16 = 1.6 \).

Step4: Calculate 2a: 70% of 38

\( \frac{70}{100} \times 38 = 0.7 \times 38 = 26.6 \).

Step5: Calculate 2b: 50% of 36

\( \frac{50}{100} \times 36 = 0.5 \times 36 = 18 \).

Step6: Calculate 3a: 80% of 28

\( \frac{80}{100} \times 28 = 0.8 \times 28 = 22.4 \).

Step7: Calculate 3b: 70% of 48

\( \frac{70}{100} \times 48 = 0.7 \times 48 = 33.6 \).

Step8: Calculate 4a: 30% of 6

\( \frac{30}{100} \times 6 = 0.3 \times 6 = 1.8 \).

Step9: Calculate 4b: 20% of 36

\( \frac{20}{100} \times 36 = 0.2 \times 36 = 7.2 \).

Step10: Calculate 5a: 20% of 22

\( \frac{20}{100} \times 22 = 0.2 \times 22 = 4.4 \).

Step11: Calculate 5b: 80% of 36

\( \frac{80}{100} \times 36 = 0.8 \times 36 = 28.8 \).

Step12: Calculate 6a: 80% of 6

\( \frac{80}{100} \times 6 = 0.8 \times 6 = 4.8 \).

Step13: Calculate 6b: 20% of 44

\( \frac{20}{100} \times 44 = 0.2 \times 44 = 8.8 \).

Step14: Calculate 7a: 70% of 8

\( \frac{70}{100} \times 8 = 0.7 \times 8 = 5.6 \).

Step15: Calculate 7b: 60% of 22

\( \frac{60}{100} \times 22 = 0.6 \times 22 = 13.2 \).

Step16: Calculate 8a: 90% of 12

\( \frac{90}{100} \times 12 = 0.9 \times 12 = 10.8 \).

Step17: Calculate 8b: 80% of 22

\( \frac{80}{100} \times 22 = 0.8 \times 22 = 17.6 \).

Answer:

1a. \( 0 \)
1b. \( 1.6 \)
2a. \( 26.6 \)
2b. \( 18 \)
3a. \( 22.4 \)
3b. \( 33.6 \)
4a. \( 1.8 \)
4b. \( 7.2 \)
5a. \( 4.4 \)
5b. \( 28.8 \)
6a. \( 4.8 \)
6b. \( 8.8 \)
7a. \( 5.6 \)
7b. \( 13.2 \)
8a. \( 10.8 \)
8b. \( 17.6 \)