AI Generated Exam Paper

Primary 4 Mathematics Practice Paper 4

Free P4 Maths Practice Paper 4, Ox AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

These static practice materials are generated from the site's syllabus and paper-generation workflow, with source and model context shown so students and parents can evaluate the material before use.

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

Questions

Free quiz and exam paper access

Enter your details to view this paper

Your access is remembered on this device.

Answers

TuitionGoWhere Practice Paper — Answer Key & Worked Solutions

Mathematics Primary 4 — Whole Numbers (Version 4 of 5) — Total: 50 marks


Section A: Multiple-Choice Questions (Questions 1–5) — 5 marks

Q1 (1 mark): (2) — In 84,267 the thousands digit is 4.

Q2 (1 mark): (4) — The 7 is in the thousands place, so it stands for 7,000.

Q3 (1 mark): (3) — Sixty thousand three hundred and five = 60,305.

Q4 (1 mark): (3) — 48,562 is closer to 48,600 than to 48,500, so it rounds to 48,600.

Q5 (1 mark): (1) — Comparing digit by digit: 39,850 > 39,805 > 39,580 > 39,085. Greatest = 39,850.


Section B: Short-Answer Questions (Questions 6–10) — 10 marks

Q6 (2 marks): Seventy-three thousand and nineteen

Q7 (2 marks): Pattern increases by 350 each time. 13,100 + 350 = 13,450; 13,450 + 350 = 13,800

Q8 (2 marks):

  • Nearest thousand: 65,000 (the hundreds digit is 4, so round down)
  • Nearest ten: 65,480 (the ones digit is 0, so it stays the same)

Q9 (2 marks): Any two different numbers from 27,250 to 27,349 (inclusive). Example answers: 27,260 and 27,315 (accept any valid pair, e.g., 27,250 / 27,349)

Q10 (2 marks): 54,280 < 58,024 < 58,204 < 58,420


Section C: Structured Questions (Questions 11–15) — 15 marks

Q11 (3 marks): Digits 3, 9, 0, 7, 5, each used once.

  • (a) Greatest: 97,530 (largest digits first) — 1 mark
  • (b) Smallest: 30,579 (smallest non-zero digit first, then ascending; 0 cannot lead) — 1 mark
  • (c) Difference: 97,530 − 30,579 = 66,951 — 1 mark

Q12 (3 marks): Mystery number = 85,261

  • Ten thousands: given as 8
  • Thousands: 8 − 3 = 5
  • Hundreds: given as 2
  • Tens: 2 + 4 = 6
  • Ones: 22 − (8 + 5 + 2 + 6) = 22 − 21 = 1 (1 mark for correct method/clues applied, 1 mark for digit sum check, 1 mark for final number)

Q13 (3 marks): Actual distance = 27,850 m

  • (a) Nearest hundred: 27,900 m — 1 mark
  • (b) Nearest thousand: 28,000 m — 1 mark
  • (c) Greater than the actual distance; 28,000 − 27,850 = 150 m more — 1 mark

Q14 (3 marks):

  • (a) Devi (12,550 m) — 1 mark
  • (b) Cai (12,005 m) — 1 mark
  • (c) 12,550 − 12,050 = 500 m — 1 mark

Q15 (3 marks): Capacity = 68,495

  • (a) Nearest thousand: 68,000 — 1 mark
  • (b) Nearest hundred: 68,500 — 1 mark
  • (c) 68,500 − 68,000 = 500 — 1 mark

Section D: Word Problems (Questions 16–20) — 20 marks

(Award method marks for correct working even if the final answer is wrong.)

Q16 (4 marks):

  • (a) 45,600 + 38,750 = 84,350 buttons altogether — 2 marks
  • (b) 45,600 − 38,750 = 6,850 more buttons in January — 2 marks

Q17 (4 marks):

  • (a) 92,000 − 47,650 = 44,350 masks left — 2 marks
  • (b) 44,350 ÷ 5 = 8,870 masks in each box — 2 marks

Q18 (4 marks): Difference between the two schools = 12,400 books. 76,300 − 12,400 = 63,900 63,900 ÷ 2 = 31,950 School B has 31,950 books. (Check: School A = 31,950 + 12,400 = 44,350; 31,950 + 44,350 = 76,300 ✓) — 4 marks

Q19 (4 marks): 2,500 × 25 = $62,500 collected in total — 4 marks

Q20 (4 marks):

  • (a) April: 15,250 − 3,750 = 11,500 kg Total: 15,250 + 11,500 = 26,750 kg altogether — 2 marks
  • (b) 26,750 ÷ 25 = 1,070 sacks — 2 marks

End of Answer Key