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P2 Subtraction with Borrowing: Ten Challenge Items
P2 Subtraction with Borrowing: Ten Challenge Items
Reverse questions, comparisons and two-step subtraction.
Direct answers Answers: 16, 62, 27, 18, 74, 28, 28, $44, 37, 37.
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: P2 Two-digit Subtraction with Borrowing |
| Level | P2 (challenge) |
02 Questions (10 items)
- Foundation63 – 47 = ?
- Foundation100 – 38 = ?
- Foundation81 – 54 = ?
- IntermediateWork out 90 – 72 in column form.
- IntermediateA number minus 46 gives 28. What is the number?
- IntermediateDo 55 – 27 and 56 – 28 give the same answer?
- Challenge94 – 27 – 39 = ?
- ChallengeA toy costs $56 and you pay with $100. How much change?
- Challenge80 – 26 – 17 = ?
- Error redoA student answered 43 for 85 – 48. What went wrong, and what is correct?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 16 | 13 minus 7 is 6, and 5 minus 4 is 1, so the answer is 16. |
| 2 | 62 | 10 minus 8 is 2, and 9 minus 3 is 6, so the answer is 62. |
| 3 | 27 | 11 minus 4 is 7, and 7 minus 5 is 2, so the answer is 27. |
| 4 | 18 | 10 minus 2 is 8, and 8 minus 7 is 1, so the answer is 18. |
| 5 | 74 | Work backwards with addition: 28 plus 46 is 74. |
| 6 | Yes, both are 28 | Adding one to both numbers keeps the difference unchanged. |
| 7 | 28 | 94 minus 27 is 67, then 67 minus 39 is 28. |
| 8 | $44 | 100 minus 56: 10 minus 6 is 4, and 9 minus 5 is 4, so the change is $44. |
| 9 | 37 | 80 minus 26 is 54, then 54 minus 17 is 37. |
| 10 | He took 15 minus 8 as 5 and forgot the tens drop by one; the correct answer is 37 | 15 minus 8 is 7, and the tens go 8 to 7 after borrowing, so 7 minus 4 gives 3. |
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.
Work slowly and check every step.Tutor Registration →
Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.