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Primary 4 Mathematics Practice Paper 1
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TuitionGoWhere Practice Paper - Mathematics Primary 4
Answer Key & Worked Solutions (Version 1 of 5)
Topic Focus: Whole Numbers (Numbers up to 100,000, Factors and Multiples, Four Operations) Total Marks: 70
Section A: Multiple Choice Questions (10 marks)
Q1: C) 7,000 — The digit 7 is in the thousands place. [2]
Q2: D) 48,509 — Compare ten-thousands digits first: 48 > 45. [2]
Q3: C) 38,500 — The tens digit is 6 (≥ 5), so round the hundreds digit 4 up to 5. [2]
Q4: B) 6 — Factors of 12: 1, 2, 3, 4, 6, 12. Factors of 18: 1, 2, 3, 6, 9, 18. Common factors: 1, 2, 3, 6. [2]
Q5: A) 10 — Do division and multiplication first: 24 ÷ 6 = 4; 3 × 2 = 6; then 4 + 6 = 10. [2]
Section B: Short Answer Questions (30 marks)
Q6: 72,005 [3]
Q7: 400 — because 50,000 + 6,000 + 400 + 60 + 2 = 56,462. [3]
Q8: 65,720 ; 67,205 ; 67,250 ; 67,502 [3]
Q9: Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36 [3]
Q10: Multiples of 8 after 20: 24, 32, 40 [3]
Q11: LCM of 4 and 6 = 12 (Multiples of 4: 4, 8, 12…; Multiples of 6: 6, 12…) [3]
Q12: HCF of 16 and 24 = 8 (Factors of 16: 1, 2, 4, 8, 16; Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24) [3]
Q13: 34,568 + 27,893 = 62,461 [3]
Q14: 80,000 − 43,275 = 36,725 [3]
Q15: 236 × 45 = 236 × 40 + 236 × 5 = 9,440 + 1,180 = 10,620 [3]
Section C: Word Problems (30 marks)
Q16: (a) 25,480 + 18,965 = 44,445 books [3] (b) 25,480 − 18,965 = 6,515 books [3]
Q17: (a) 3,750 ÷ 25 = 150 boxes [3] (b) 150 × 8 = $1,200 [3]
Q18: Total spent: 2,850 + 475 = 3,325 Money left: 9,500 − 3,325 = $6,175 [6]
Q19: Total chairs: 145 × 32 = 4,640 Chairs left: 4,640 − 58 = 4,582 chairs [6]
Q20: Mei Ling's stickers: 4,268 × 3 = 12,804 Altogether: 4,268 + 12,804 = 17,072 stickers [6]
Marking Notes
- Award method marks where working is shown correctly even if the final answer is wrong.
- For Section C, typically 1 mark for correct method/equation, remaining marks for accurate computation and correct units/answer statement.
- Accept equivalent valid working routes (e.g., Q18 solved as 9,500 − 2,850 − 475 step by step).