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Primary 4 Mathematics Practice Paper 2

Free P4 Maths Practice Paper 2, Ox AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 4 Mathematics AI Generated Generated by Ox Alpha Updated 2026-08-27

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TuitionGoWhere Practice Paper - Mathematics Primary 4 — Answer Key

Subject: Mathematics | Level: Primary 4 Paper: Practice Paper - Whole Numbers (Version 2 of 5) Total Marks: 50


Section A (Questions 1–5) — 1 mark each

  1. (2) — In 84,269, the digit 4 is in the thousands place.
  2. (4) — The 7 is in the thousands place, so it stands for 7,000.
  3. (1) — Sixty-two thousand and forty-five = 62,045.
  4. (3) — 47,582 → tens digit 8 ≥ 5, round up → 47,600.
  5. (2) — Comparing the hundreds digits after matching ten thousands/thousands: 39,850 is greatest.

Section B (Questions 6–10) — 2 marks each

  1. Thirty thousand, five hundred and eight
  2. 44,300; 44,000 (pattern decreases by 300 each time)
  3. 24,500 (smallest whole number that rounds up to 25,000 at the nearest thousand)
  4. 70,693; 70,963; 71,306; 71,360
  5. 68,495 ≈ 70,000

Section C (Questions 11–15) — 3 marks each

  1. Abacus reads 9 | 0 | 7 | 4 | 6. (a) 90,746 [1] (b) The 9 stands for 90,000 [1] (c) 7 [1]

  2. Digits 8, 0, 5, 2, 7, each used once. (a) 87,520 [1] (descending order happens to end in 0, so it is even) (b) 20,578 [2] (first digit must be 2; arrange remaining digits 0, 5, 7, 8 in ascending order)

  3. Rounding 56,349: (a) Nearest ten: 56,350 [1] (b) Nearest hundred: 56,300 [1] (tens digit 4 < 5, round down) (c) Nearest thousand: 56,000 [1] (hundreds digit 3 < 5, round down)

  4. 45,349 [3]

  • Nearest hundred: 45,349 → 45,300 ✓ (tens digit 4 < 5)
  • Nearest thousand: 45,349 → 45,000 ✓ (hundreds digit 3 < 5)
  • Any larger number up to 45,399 would fail the first condition; 45,349 is the greatest satisfying both.
  1. Sunday: 12,450 − 1,275 = 11,175 visitors. Altogether: 12,450 + 11,175 = 23,625 visitors [3]

Section D (Questions 16–20) — 4 marks each

  1. Sister: 4,850 − 1,275 = 3,575. Altogether: 4,850 + 3,575 = $8,425 [4]

  2. Total books: 5 × 144 = 720. Per shelf: 720 ÷ 8 = 90 books [4]

  3. (a) 18,800 [1] (b) 19,000 [1] (c) Overestimate [1] — 762 is more than half of 1,000, so 18,762 rounds up to 19,000, which is greater than the actual attendance. [1]

  4. Cost: 6 × 85 = 510.Paid:12×50=510. Paid: 12 × 50 = 600. Change: 600 − 510 = $90 [4]

  5. Girls: (4,215 − 315) ÷ 2 = 3,900 ÷ 2 = 1,950 girls [4] (Check: boys = 1,950 + 315 = 2,265; 1,950 + 2,265 = 4,215 ✓)


End of Answer Key