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P1 Comparing Lengths Directly Paper 2 (intermediate)
P1 Comparing Lengths Directly Paper 2 (intermediate)
Ten intermediate items on joining, folding, differences and two-step reasoning.
Direct answers Q1 80 cm, Q2 9 and 4 squares, Q3 2 squares, Q4 45 cm and 25 cm, Q5 3 spans, Q6 8 squares, Q7 9 squares, Q8 10 and 2 clips, Q9 7 squares, Q10 one same object must be used.
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: P1 Comparing Lengths Directly |
| Level | P1 |
02 Questions (10 items)
- FoundationA 20 cm strip measures a bamboo pole exactly 4 times. How long is the pole?
- FoundationString A is 6 squares. B is 3 squares longer and C is 2 squares shorter. How long are B and C?
- FoundationA stack of four books is 8 squares high and a stack of five books is 10 squares. Which is taller and by how much?
- IntermediateThree 15 cm strings are joined. How long is the result, and what is left after cutting off 20 cm?
- IntermediateA table is 8 spans long, a chair is 6 spans high and a cupboard is 9 spans high. What is the gap between the tallest and the shortest?
- IntermediateA string folded in half measures 4 squares. How long was it before folding?
- ChallengeSegment A is 7 squares. B is twice A and C is 5 squares shorter than B. How long is C?
- ChallengeA pencil case is 6 clips long and 4 clips wide. What is the total and what is the difference in clips?
- ChallengeString A is 12 squares. After cutting 3 squares it is still 2 squares longer than B. How long is B?
- Error redoMing says a string of 6 squares must be longer than one of 5 squares. What is wrong with this?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 80 cm | 20 x 4 = 80; four strips add up to the whole pole. |
| 2 | B is 9 squares and C is 4 squares | Longer means add, shorter means subtract: 9 and 4. |
| 3 | The second stack, by 2 squares | 10 – 8 = 2; check that the same kind of book was used. |
| 4 | 45 cm, and 25 cm left | 15 x 3 = 45, then 45 – 20 = 25. |
| 5 | 3 spans | The tallest is 9 spans and the shortest 6 spans, so 9 – 6 = 3. |
| 6 | 8 squares | Folding halves the length, so 4 x 2 = 8. |
| 7 | 9 squares | 7 x 2 = 14, then 14 – 5 = 9. |
| 8 | 10 clips in all, 2 clips difference | 6 + 4 = 10 and 6 – 4 = 2. |
| 9 | 7 squares | 12 – 3 = 9, then 9 – 2 = 7. |
| 10 | Both strings must be measured with the same object, otherwise the counts cannot be compared | Key point: different units cannot be compared, so use one measuring object first. |
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.
For any wrong item, write every step before checking the answer.Tutor Registration →
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