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Primary 3 Mathematics Practice Paper 5
Free P3 Maths Practice Paper 5, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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TuitionGoWhere Practice Paper — Mathematics Primary 3 (Answer Key)
Version: 5
Total Marks: 40
Section A (10 marks)
1. 3
Teaching note: Place values from right: ones (4), tens (6), hundreds (3), thousands (7). Hundreds digit = 3. [1 mark]
2. 5000
Teaching note: Digit 5 is in thousands place, so its value is 5 × 1000 = 5000. Common mistake: writing "5" instead of value. [1 mark]
3. 9247
Teaching note: Nine thousand = 9000, two hundred = 200, forty = 40, seven = 7; sum = 9247. [1 mark]
4. 4182
Teaching note: Compare thousands (same 4), hundreds (1 vs 1), tens (8 vs 2); 8 > 2 so 4182 > 4128. [1 mark]
5. 3005, 3050, 3500, 3550
Teaching note: Compare by thousands (all 3), hundreds (0,0,5,5), tens within same hundred group. [1 mark]
6. 4800
Teaching note: Rounding to hundred: look at tens digit 6 (≥5) → round up 4763 → 4800. [1 mark]
7. 7000
Teaching note: Rounding to thousand: look at hundreds digit 8 (≥5) → round up 6840 → 7000. [1 mark]
8. 2400, 2500
Teaching note: Pattern increases by 100 each step. 2300 + 100 = 2400, +100 = 2500. [1 mark]
9. 4850
Teaching note: Decreasing by 50 each time: 5000, 4950, 4900, 4850, 4800. [1 mark]
10. Even
Teaching note: Ones digit 4 is even, so whole number is even. [1 mark]
Section B (12 marks)
11. Digit = 8; Value = 8000
Working: Thousands place digit in 8432 is 8. Value = 8 × 1000 = 8000. [2 marks: 1 for digit, 1 for value]
12. Unit number = 5; Tens digit value = 90
Working: 6195 → ones = 5 (unit number). Tens digit = 9, value = 9 × 10 = 90. [2 marks]
13. 7629 is smaller
Working: Compare thousands (7=7), hundreds (6=6), tens (2 vs 9); 2 < 9 so 7629 < 7692. [2 marks: 1 comparison, 1 reason]
14. Nearest ten = 3530; Nearest thousand = 4000
Working: 3528 → tens: ones digit 8 ≥5 → 3530. Thousands: hundreds digit 5 ≥5 → 4000. [2 marks]
15. 1330, 1360
Working: Difference = 1270 − 1240 = 30. 1300 + 30 = 1330; +30 = 1360. [2 marks]
16. 3C (2874), 3A (2847), 3B (2784)
Working: Highest hundreds? All 2. Tens: 2874 (7), 2847 (4), 2784 (8 but hundreds 7<8). Actually compare: 2874 > 2847 > 2784. [2 marks]
Section C (18 marks)
17. Level digit = 2; Value = 200
Working: 1247 → thousands 1, hundreds 2 (level), tens 4, ones 7. Value of 2 = 2 × 100 = 200. [3 marks: 1 digit, 2 value+explanation]
18. Tens digit = 5; Thousands value = 3000
Working: 3652 → tens = 5 (floor). Thousands digit = 3, value = 3 × 1000 = 3000. [3 marks]
19. Order: Mei 2510, Siti 2450, Ali 2405, Raj 2380. Needs 490 more.
Working: Compare: 2510 > 2450 > 2405 > 2380. 3000 − 2510 = 490. [3 marks: 2 order, 1 difference]
20. Hundreds digit = 3; Rounded = 4400
Working: 4372 → hundreds digit is 3. Round to hundred: tens digit 7 ≥5 → 4372 → 4400. [3 marks]