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Primary 1 Mathematics Money Quiz
Free P1 Maths Money quiz, LongCat AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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Answers
Primary 1 Mathematics Quiz - Money
Answer Key
Section A: Recognising Coins and Notes
1. 50 cents (or 50¢)
Marking: 1 mark for correct answer. Accept "50 cents", "50¢", or "fifty cents".
2. (B) 10-cent coin
Marking: 1 mark for circling or writing B.
3. 2", "2 dollars", or "two dollars".*
4. Correct matches:
- 🟡 Gold coin → 50 cents
- ⚪ Silver coin → 20 cents
- 🟤 Small bronze coin → 5 cents
Marking: 1 mark for all three correct. 0 marks if any are wrong.
5. 5 coins
Marking: 1 mark. Reasoning: 10¢ + 10¢ + 10¢ + 10¢ + 10¢ = 50¢. Common mistake: writing "10" instead of "5".
Section B: Counting Money
6. 1.50" or "150 cents".*
7. 1.00*
Marking: 2 marks. 1 mark for correct addition steps, 1 mark for correct final answer with unit.
8. 1.00*
Marking: 2 marks. 1 mark for correct multiplication or repeated addition, 1 mark for correct answer.
9. 1.10*
Marking: 2 marks. 1 mark for correct working, 1 mark for correct final answer.
10. 1.40*
Marking: 2 marks. 1 mark for correct addition, 1 mark for correct final answer with unit.
Section C: Comparing Money
11. Both have the same amount (1.00. Ali: 20¢ + 20¢ + 20¢ + 20¢ + 20¢ = 100¢ = $1.00.*
Marking: 2 marks. 1 mark for calculating each person's total correctly, 1 mark for correct comparison. Accept "same" or "equal". Common mistake: thinking more coins means more money.
12. 50¢, 80¢, 2.00
Working: Convert all to cents if needed: 50¢, 80¢, 120¢, 200¢.
Marking: 2 marks. 1 mark for correct order, 1 mark for correct units. All four must be in correct order for full marks.
13. Less than
Working: 30¢ < 50¢
Marking: 2 marks. Accept "less than", "smaller than", or "<".
14. The pencil costs less. It costs 15¢ less.
Working: 60¢ − 45¢ = 15¢
Marking: 2 marks. 1 mark for identifying the pencil, 1 mark for correct difference of 15¢.
15. Group A = 70¢, Group B = 60¢. Group A has more money.
Working: Group A: 50¢ + 20¢ = 70¢. Group B: 20¢ + 20¢ + 20¢ = 60¢. 70¢ > 60¢.
Marking: 2 marks. 1 mark for correct totals, 1 mark for correct comparison.
Section D: Using Money
16. Yes, she has enough.
Working: 20¢ + 10¢ + 10¢ = 40¢. 40¢ > 30¢, so she has enough.
Marking: 2 marks. 1 mark for correct total (40¢), 1 mark for correct conclusion ("yes" or "enough").
17. 30¢
Working: 80¢ − 50¢ = 30¢
Marking: 2 marks. 1 mark for correct subtraction, 1 mark for correct answer with unit.
18. (A) 🟡 + 🟡 (50¢ + 50¢)
Working: 50¢ + 50¢ = 100¢ = $1.00. Option B = 90¢, Option C = 60¢, Option D = 90¢.
Marking: 2 marks. 1 mark for selecting A, 1 mark for showing working or reasoning.
19. She spends 1.10. Money left: 1.10 = 40¢.*
Marking: 2 marks. 1 mark for correct total spent, 1 mark for correct amount left.
20.
(a) 70¢
Working: 50¢ + 20¢ = 70¢
(b) Yes, he has enough.
Working: 70¢ > 60¢, so he has enough to buy the keychain.
Marking: 2 marks total. 1 mark for correct answer to (a), 1 mark for correct answer to (b) with reasoning. Common mistake in (b): saying "no" because the numbers look close — encourage students to compare the actual values.
Summary of Marks
| Section | Questions | Marks per Question | Section Total |
|---|---|---|---|
| A | 1–5 | 1 | 5 |
| B | 6–10 | 2 | 10 |
| C | 11–15 | 2 | 10 |
| D | 16–20 | 2 | 10 |
| Total | 20 questions | 30 marks |
Notes for Marking
- Accept answers in cents (¢) or dollars ($) where appropriate, as long as the unit is clearly stated.
- For questions requiring working, award process marks even if the final answer is incorrect, provided the method is correct.
- Common errors to watch for:
- Confusing the number of coins with the value of coins (e.g., "5 coins" vs "5 cents").
- Not converting between cents and dollars correctly (100¢ = $1.00).
- Subtraction errors in change problems — encourage students to check by adding the change back to the cost.