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Primary 5 Mathematics Practice Paper 4
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TuitionGoWhere Practice Paper — Mathematics Primary 5
Answer Key — Whole Numbers (Version 4 of 5)
Section A: Multiple Choice (10 marks)
1. What is the value of the digit 7 in 3 725 406?
The digit 7 is in the hundred thousands place. 7 × 100 000 = 700 000
Answer: (D) 700 000 [2]
Marking: Award 2 marks for the correct answer. No half marks.
2. Round 4 567 891 to the nearest hundred thousand.
The hundred thousands digit is 5. The ten thousands digit is 6, which is ≥ 5, so we round up. 4 567 891 → 4 600 000
Answer: (C) 4 600 000 [2]
Marking: Award 2 marks for the correct answer.
3. Which is the smallest number?
Compare digit by digit from the left:
- All start with 2 (millions).
- Hundred thousands: options B and D have 0; A and C have 2. So B or D is smaller.
- Ten thousands: B has 8, D has 8. Same.
- Thousands: B has 9, D has 9. Same.
- Hundreds: B has 7, D has 6. D is smaller.
Answer: (D) 2 089 657 [2]
Marking: Award 2 marks for the correct answer.
4. 3 400 000 ÷ 1 000 = ?
Dividing by 1 000 removes three zeros. 3 400 000 ÷ 1 000 = 3 400
Answer: (C) 3 400 [2]
Marking: Award 2 marks for the correct answer.
5. Total toys = 2 450 000 + 3 125 000 = 5 575 000
In words: Five million five hundred and seventy-five thousand.
Answer: (A) Five million five hundred and seventy-five thousand [2]
Marking: Award 2 marks for the correct answer. Common mistake: omitting "thousand" at the end.
Section B: Short Answer (15 marks)
6. Five million, three hundred and six thousand, two hundred and nine.
5 000 000 + 306 000 + 209 = 5 306 209
Answer: 5 306 209 [2]
Marking: Award 2 marks for the correct numeral. Award 1 mark if the student writes 5 306 200 or 5 306 29 (one place value error).
7. Arrange from smallest to largest.
3 025 000 < 3 052 000 < 3 205 000 < 3 250 000
Answer: 3 025 000 < 3 052 000 < 3 205 000 < 3 250 000 [2]
Marking: Award 2 marks for all four in correct order. Award 1 mark if two or three are in the correct relative position.
8. 2 800 000 = 2 million + ________ thousands
2 800 000 − 2 000 000 = 800 000 800 000 = 800 thousands
Answer: 800 [1]
Marking: Award 1 mark for the correct answer.
9. 250 × 4 000
250 × 4 000 = 250 × 4 × 1 000 = 1 000 × 1 000 = 1 000 000
Answer: 1 000 000 [2]
Marking: Award 2 marks for the correct answer with working. Award 1 mark for the correct answer without working, or for correct working with a minor arithmetic error.
10. 300
Answer: $300 [2]
Marking: Award 2 marks for the correct answer with working. Award 1 mark for correct method with computational error.
11. 8 000 000 − 3 456 789
8 000 000
− 3 456 789
───────────
4 543 211
Answer: 4 543 211 [2]
Marking: Award 2 marks for the correct answer with working. Award 1 mark for correct method with one regrouping error.
12. Number pattern.
The pattern increases by 250 000 each time. 1 250 000 | 1 500 000 | 1 750 000 | 2 000 000 | 2 250 000
Answer: 2 000 000 and 2 250 000 [2]
Marking: Award 2 marks for both correct. Award 1 mark for one correct (if the pattern is otherwise consistent).
13. 6 070 050 in expanded form.
6 070 050 = 6 000 000 + 70 000 + 50
Answer: 6 000 000 + 70 000 + 50 [2]
Marking: Award 2 marks for the fully correct expanded form. Award 1 mark if one place value is missing or incorrect. Common mistake: writing 7 000 instead of 70 000 (the 7 is in the ten thousands place).
Section C: Structured / Problem Solving (15 marks)
14. Town A: 2 340 500; Town B: 1 875 600
(a) Total population:
2 340 500
+ 1 875 600
───────────
4 216 100
Answer: 4 216 100 [2]
(b) Difference:
2 340 500
− 1 875 600
───────────
464 900
Answer: 464 900 [2]
Marking: Award 2 marks each for correct answer with working. Award 1 mark for correct method with minor arithmetic error.
15. Total apples: 4 500
(a) Apples sold altogether: 1 750 + 1 280 = 3 030
Answer: 3 030 apples [2]
(b) Apples left: 4 500 − 3 030 = 1 470
Answer: 1 470 apples [2]
Marking: Award 2 marks each for correct answer with working. For part (b), accept follow-through from part (a) if the student's answer to (a) was used correctly.
16. 360 000 books in a year. 12 months in a year.
360 000 ÷ 12 = 30 000
Working: 360 000 ÷ 12 = 360 000 ÷ (6 × 2) = (360 000 ÷ 6) ÷ 2 = 60 000 ÷ 2 = 30 000
Or: 12 × 30 000 = 360 000 ✓
Answer: 30 000 books per month [3]
Marking: Award 3 marks for the correct answer with clear working. Award 2 marks for correct answer with incomplete working, or correct working with a minor error. Award 1 mark for stating the correct operation (360 000 ÷ 12) without completing the calculation.
17. Museum visitors data:
| Museum | Visitors |
|---|---|
| Art Museum | 1 250 000 |
| Science Museum | 2 100 000 |
| History Museum | 1 875 000 |
| Children's Museum | 980 000 |
(a) The Science Museum had the most visitors (2 100 000).
Answer: Science Museum [1]
(b) Science Museum − Children's Museum: 2 100 000 − 980 000 = 1 120 000
Answer: 1 120 000 more visitors [2]
(c) Total visitors:
1 250 000
+ 2 100 000
+ 1 875 000
+ 980 000
───────────
6 205 000
Answer: 6 205 000 visitors [2]
Marking:
- (a) Award 1 mark for the correct answer.
- (b) Award 2 marks for the correct answer with working. Award 1 mark for correct method with error.
- (c) Award 2 marks for the correct answer with working. Award 1 mark for correct method with one addition error. Common mistake: misalignment of place values when adding.
Total: 40 marks