Let’s solve each percentage problem step by step. Remember:
To find a percentage of a number, you can think of it as “how much is this part out of 100?”
For example: 25% means 25 out of 100 → so 25% of 100 = 25 (already done for us).
We’ll go one by one:
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1. 25% of 100 = 25 ← already given
2. 20% of 100
→ 20% means 20 out of 100 → so 20% of 100 =
20
3. 25% of 200
→ 25% is the same as 1/4 → 200 ÷ 4 =
50
4. 20% of 200
→ 20% = 20/100 = 1/5 → 200 ÷ 5 =
40
5. 50% of 200
→ 50% = half → 200 ÷ 2 =
100
6. 10% of 20
→ 10% = move decimal one place left → 20 →
2
7. 20% of 50
→ 20% = 1/5 → 50 ÷ 5 =
10
8. 40% of 150
→ 40% = 40/100 = 2/5 → 150 × 2/5 = (150 ÷ 5) × 2 = 30 × 2 =
60
9. 20% of 150
→ 20% = 1/5 → 150 ÷ 5 =
30
10. 10% of 30
→ 10% = move decimal left → 30 →
3
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Now the second column:
11. 20% of 40
→ 20% = 1/5 → 40 ÷ 5 =
8
12. 60% of 200
→ 60% = 60/100 = 3/5 → 200 × 3/5 = (200 ÷ 5) × 3 = 40 × 3 =
120
13. 70% of 100
→ 70% = 70 out of 100 →
70
14. 60% of 150
→ 60% = 3/5 → 150 × 3/5 = (150 ÷ 5) × 3 = 30 × 3 =
90
15. 90% of 50
→ 90% = 9/10 → 50 × 9/10 = (50 ÷ 10) × 9 = 5 × 9 =
45
16. 1% of 300
→ 1% = 1/100 → 300 ÷ 100 =
3
17. 50% of 150
→ Half of 150 =
75
18. 50% of 100
→ Half of 100 =
50
19. 40% of 60
→ 40% = 2/5 → 60 × 2/5 = (60 ÷ 5) × 2 = 12 × 2 =
24
20. 80% of 60
→ 80% = 4/5 → 60 × 4/5 = (60 ÷ 5) × 4 = 12 × 4 =
48
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Final Answer:
1. 25
2. 20
3. 50
4. 40
5. 100
6. 2
7. 10
8. 60
9. 30
10. 3
11. 8
12. 120
13. 70
14. 90
15. 45
16. 3
17. 75
18. 50
19. 24
20. 48
Parent Tip: Review the logic above to help your child master the concept of worksheet on percentage.
