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Primary Maths: Fractions, Decimals and Percentages (Paper 2 (intermediate))
Primary Maths: Fractions, Decimals and Percentages (Paper 2 (intermediate))
This paper covers denominators of eight, twenty and twenty-five, plus finding a percentage of a quantity.
Direct answers With denominators 8, 20 and 25, try scaling to 100 before doing long division.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 20 |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: Primary Maths: Fractions, Decimals and Percentages |
| Level | P5 |
02 Questions (10 items)
- FoundationConvert seven eighths to a decimal and a percentage.
- FoundationConvert 0.05 to a percentage and a fraction in simplest form.
- FoundationConvert three twentieths to a percentage.
- IntermediateWhat is 25% of 60?
- IntermediateWhat is 15% of 240?
- IntermediateConvert 0.625 to a fraction in simplest form and a percentage.
- ChallengeArrange 0.72, seven tenths and 71% from largest to smallest.
- ChallengeConvert twelve twenty-fifths to a decimal and a percentage.
- ChallengeIn a class of 80 students, 45% travel by school bus. How many students is that?
- Error redoA student writes one quarter as 0.25 and 2.5%. What is the correct percentage?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 0.875 and 87.5% | Seven divided by eight is 0.875, which is 87.5%. |
| 2 | 5% and 1/20 | 0.05 times 100 is 5, and 5 over 100 simplifies to 1 over 20. |
| 3 | 15% | Three twentieths is 15 hundredths, that is 15%. |
| 4 | 15 | 60 times 0.25 is 15. |
| 5 | 36 | 240 times 0.15 is 36. |
| 6 | 5/8 and 62.5% | 0.625 is 625 over 1000, which simplifies to 5 over 8. |
| 7 | 0.72, 71%, seven tenths | As decimals they are 0.72, 0.71 and 0.70. |
| 8 | 0.48 and 48% | Twelve divided by twenty-five is 0.48, which is 48%. |
| 9 | 36 students | 80 times 0.45 is 36, that is 45% of the class. |
| 10 | 25% | The error is dividing again by ten; 0.25 times 100 is 25. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
Three steps: make the denominator ten or a hundred, divide to a decimal, then multiply by a hundred for a percentage; always convert to one form before comparing or ordering.Tutor Registration →
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