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Primary 4 Mathematics Practice Paper 5
Free P4 Maths Practice Paper 5, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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Questions
TuitionGoWhere Practice Paper - Mathematics Primary 4
TuitionGoWhere Practice Paper (AI) — Version 5
Subject: Mathematics
Level: Primary 4
Paper: Practice Paper (Whole Numbers)
Duration: 45 minutes
Total Marks: 40
Name:
Class:
Date:
Instructions
- This paper contains 20 questions on Whole Numbers (up to 100,000), worth a total of 40 marks.
- Section A: 10 short-answer questions (1 mark each). Section B: 6 short-structured questions (2 marks each). Section C: 4 problem-solving questions (3 marks each).
- Write your answers in the spaces provided. Show your working clearly where required.
- Use the approximation symbol (≈) only when rounding.
- Calculators are not allowed.
Section A (10 marks)
Answer each question. 1 mark each.
1. Write "eighty-four thousand and seven" in numerals.
2. In the number 57,392, which digit is in the thousands place?
3. What does the digit 6 stand for in 61,408?
4. Round 29,056 to the nearest hundred.
5. Round 72,450 to the nearest thousand.
6. A number rounded to the nearest ten is 4,380. Which of these could be the original number?
A) 4,373 B) 4,384 C) 4,391 D) 4,366
7. Find the sum: 12,345 + 8,754.
8. Subtract 9,287 from 20,000.
9. Multiply 3,214 by 3.
10. Divide 8,472 by 4.
Section B (12 marks)
Show your working. 2 marks each.
11. A housing board reported 46,219 residents in Tampines. Round this number to the nearest thousand and write the answer using the approximation symbol.
12. The postal code of a heritage building is 39,847. State the digit in the ten thousands place and explain what the number represents in terms of place value.
13. List all the factors of 36.
14. Which of the following is a common factor of 24 and 40? Show your working.
(Options: 3, 4, 5, 9)
15. A stall sold 2,145 packets of food in January and 3,078 packets in February. How many packets were sold altogether?
16. A bus company has 18,540 passengers in a week. If each bus carries 6 passengers per trip on a small route, how many such trips are needed? (Assume exact division for this practice.)
Section C (18 marks)
Show full working. 3 marks each.
17. Singapore's population density in a town is about 58,935 people per km². Round this to the nearest thousand. Another town has 25,847 residents. Find the difference between the rounded density figure and this town's residents. Express your answer in words.
18. Mei bought 4 boxes of markers. Each box has 2,368 markers. She gave 1,500 markers to her school. How many markers does she have left? Show your steps.
19. A warehouse had 65,000 notebooks. They shipped out 23,475 in one load and 18,920 in another. How many notebooks remain? Round your answer to the nearest thousand and use ≈.
20. Mr. Tan arranged 7,200 chairs in rows of 8 for an event. After the event, he stacked them into bundles of 12. How many bundles did he make? Show the two steps.
Answers
TuitionGoWhere Practice Paper — Mathematics Primary 4 (Answer Key)
Version: 5
Total Marks: 40
Section A (10 marks)
1. [1 mark]
Answer: 84,007
Teaching note: "Eighty-four thousand" = 84,000. "And seven" = 7 in the ones place. Combine: 84,007. Common mistake: writing 84,700 by misplacing the 7.
2. [1 mark]
Answer: 7
Teaching note: 57,392 → ten thousands=5, thousands=7, hundreds=3, tens=9, ones=2. The thousands digit is 7.
3. [1 mark]
Answer: 60,000 (sixty thousand)
Teaching note: In 61,408, the 6 is in the ten thousands place, so it stands for 6 × 10,000 = 60,000.
4. [1 mark]
Answer: 29,100
Teaching note: Rounding to nearest hundred: look at tens digit (5). Since 5 ≥ 5, round up hundreds digit: 29,056 → 29,100.
5. [1 mark]
Answer: 72,000
Teaching note: Rounding to nearest thousand: look at hundreds digit (4). Since 4 < 5, keep thousand digit same: 72,450 → 72,000.
6. [1 mark]
Answer: B) 4,384
Teaching note: Numbers rounding to nearest ten = 4,380 must be from 4,375 to 4,384. Only 4,384 fits. (4,373→4,370; 4,391→4,390; 4,366→4,370)
7. [1 mark]
Answer: 21,099
Working: 12,345 + 8,754 = 20,000 + 1,099 = 21,099.
8. [1 mark]
Answer: 10,713
Working: 20,000 − 9,287 = 10,713.
9. [1 mark]
Answer: 9,642
Working: 3,214 × 3 = 9,642.
10. [1 mark]
Answer: 2,118
Working: 8,472 ÷ 4 = 2,118.
Section B (12 marks)
11. [2 marks]
Answer: 46,219 ≈ 46,000
Working: Round to nearest thousand: hundreds digit = 2 (<5), so 46,219 → 46,000. Use ≈ : 46,219 ≈ 46,000.
Marking: 1 mark for correct rounded value, 1 mark for using ≈.
12. [2 marks]
Answer: Digit = 3; it is in ten thousands place, value = 30,000.
Teaching note: 39,847 → 3 is ten thousands (3×10,000=30,000). In postal code context, the first two digits often indicate sector; here digit 3 shows the broad sector region.
Marking: 1 mark digit, 1 mark place value explanation.
13. [2 marks]
Answer: 1, 2, 3, 4, 6, 9, 12, 18, 36
Working: Test divisibility: 36÷1=36, ÷2=18, ÷3=12, ÷4=9, ÷6=6. Include 1 and 36.
Common mistake: missing 1 or 36.
14. [2 marks]
Answer: 4
Working: Factors of 24: 1,2,3,4,6,8,12,24. Factors of 40: 1,2,4,5,8,10,20,40. Common: 1,2,4,8. From options, only 4.
Marking: 1 mark listing/common, 1 mark correct choice.
15. [2 marks]
Answer: 5,223 packets
Working: 2,145 + 3,078 = 5,223.
16. [2 marks]
Answer: 3,090 trips
Working: 18,540 ÷ 6 = 3,090.
Section C (18 marks)
17. [3 marks]
Answer: 59,000; difference = 33,088; "thirty-three thousand and eighty-eight"
Working:
- Round 58,935 to nearest thousand: hundreds=9 (≥5) → 59,000. [1 mark]
- Difference: 59,000 − 25,847 = 33,088. [1 mark]
- In words: thirty-three thousand and eighty-eight. [1 mark]
Teaching note: Rounding first then subtract as question asks difference between rounded figure and residents.
18. [3 marks]
Answer: 7,972 markers
Working:
- Total bought: 4 × 2,368 = 9,472. [1 mark]
- Left: 9,472 − 1,500 = 7,972. [2 marks: 1 for subtraction step, 1 for final]
Common mistake: multiplying wrongly or subtracting before total.
19. [3 marks]
Answer: 22,605; ≈ 23,000
Working:
- Remain: 65,000 − 23,475 = 41,525. [1 mark]
- 41,525 − 18,920 = 22,605. [1 mark]
- Round to nearest thousand: hundreds=6 (≥5) → 23,000. Write 22,605 ≈ 23,000. [1 mark]
20. [3 marks]
Answer: 600 bundles
Working:
- Step 1: rows of 8 from 7,200 → 7,200 ÷ 8 = 900 rows. [1.5 marks]
- Step 2: bundles of 12 from 7,200 chairs → 7,200 ÷ 12 = 600 bundles. [1.5 marks]
Note: Question asks bundles of 12, so final = 600.
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