Primary 6 PSLE Mathematics Whole Numbers Quiz

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Primary 6 PSLE Mathematics Quiz - Whole Numbers

Name: ___________________________
Class: ___________________________
Date: ___________________________
Score: ___________ / 40

Duration: 50 minutes
Total Marks: 40

Instructions:

1. This quiz has 20 questions on Whole Numbers.
2. Write your answers in the spaces provided.
3. Show your working clearly where needed.
4. Calculators are allowed for checking only.

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Section A (Questions 1–8, 1 mark each)

1. Write the number 7 482 915 in words.
   Answer: ___________________________

2. What is the place value of the digit 6 in 6 304 128?
   Answer: ___________________________

3. Round 4 827 193 to the nearest hundred thousand.
   Answer: ___________________________

4. Find the value of 3 215 + 48 672 − 9 438.
   Answer: ___________________________

5. Multiply 2 406 by 35.
   Answer: ___________________________

6. A factory produced 12 480 toys. If they are packed equally into 24 boxes, how many toys in each box?
   Answer: ___________________________

7. What is the remainder when 9 873 is divided by 16?
   Answer: ___________________________

8. Write 3 000 000 + 45 000 + 700 + 9 as a single number.
   Answer: ___________________________

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Section B (Questions 9–14, 2 marks each)

9. A charity collected $128 400. They received this in equal donations from 12 companies. How much did each company donate? Answer:$___________________________

10. Mr Tan drove 1 245 km in the first week and 1 873 km in the second week. What was the total distance he drove?
    Answer: ___________________________ km

11. A school has 2 340 students. If 1 287 are boys, how many girls are there?
    Answer: ___________________________

12. Round 9 765 432 to the nearest million.
    Answer: ___________________________

13. A bookshop sold 3 428 books on Monday and 2 976 books on Tuesday. How many more books were sold on Monday than Tuesday?
    Answer: ___________________________

14. Multiply 1 204 by 47 and then subtract 5 000 from the product. What is the final answer?
    Answer: ___________________________

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Section C (Questions 15–20, 3–4 marks each)

15. A warehouse had 84 600 packets of biscuits. It delivered 12 450 packets to Shop A and 23 875 packets to Shop B. The rest were shared equally among 15 mini-marts. How many packets did each mini-mart receive?
    Answer: ___________________________

16. A train ticket costs $148. A family of 6 adults and 4 children bought tickets. The children tickets cost$84 each. How much did they pay in total?
    Answer: $___________________________

17. Town A has population 234 561 and Town B has population 198 744. Estimate the total population by rounding each to the nearest ten thousand before adding.
    Answer: ___________________________

18. A farmer collected 6 720 eggs. He packed them into trays of 30 eggs each, then placed 8 trays into each carton. How many cartons did he use?
    Answer: ___________________________

19. Mr Lim had $50 000. He spent$12 375 on a laptop and $8 640 on a phone. He divided the remaining money equally among his 5 children. How much did each child receive? Answer:$___________________________

20. A printing company printed 120 000 leaflets. They sent 45 600 to Zone 1 and 38 925 to Zone 2. The remaining leaflets were sent in equal numbers to 6 schools. How many leaflets did each school get?
    Answer: ___________________________

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Primary 6 PSLE Mathematics Quiz - Whole Numbers (Answer Key)

Total Marks: 40
Topic: Whole Numbers (syllabus-first, no past-year evidence used)

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Section A Answers (1 mark each)

Q1. Seven million four hundred and eighty-two thousand nine hundred and fifteen.
Teaching note: Read from left: 7 (millions), 482 (thousands), 915 (ones). Hyphenate compound numbers like forty-eight.

Q2. Millions.
Teaching note: Digit 6 is in the 7-digit position from right: millions place.

Q3. 4 800 000.
Working: 4 827 193 → hundred thousand digit is 8, next digit 2 (<5) so round down.
Common mistake: Rounding to 5 000 000 (that is nearest million).

Q4. 42 449.
Working: 3 215 + 48 672 = 51 887; 51 887 − 9 438 = 42 449.

Q5. 84 210.
Working: 2 406 × 35 = 2 406 × 30 + 2 406 × 5 = 72 180 + 12 030 = 84 210.

Q6. 520.
Working: 12 480 ÷ 24 = 520.

Q7. 1.
Working: 16 × 617 = 9 872; 9 873 − 9 872 = 1.

Q8. 3 045 709.
Working: 3 000 000 + 45 000 = 3 045 000; +700 = 3 045 700; +9 = 3 045 709.

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Section B Answers (2 marks each)

Q9. $10 700. [2]
Working: 128 400 ÷ 12 = 10 700.
Marking: 1 mark for operation, 1 mark for answer.

Q10. 3 118 km. [2]
Working: 1 245 + 1 873 = 3 118.

Q11. 1 053. [2]
Working: 2 340 − 1 287 = 1 053.

Q12. 10 000 000. [2]
Working: 9 765 432 → million digit 9, next 7 (≥5) round up to 10 000 000.

Q13. 452. [2]
Working: 3 428 − 2 976 = 452.

Q14. 51 588. [2]
Working: 1 204 × 47 = 56 588; 56 588 − 5 000 = 51 588.

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Section C Answers (3–4 marks each)

Q15. 3 218 packets. [3]
Working:
Delivered: 12 450 + 23 875 = 36 325.
Remaining: 84 600 − 36 325 = 48 275.
Each mini-mart: 48 275 ÷ 15 = 3 218 (remainder 5, but context implies equal share of whole packets possible; 15×3 218=48 270, 5 left undistributed – accept 3 218 with note).
Marking: 1 mark total delivered, 1 mark remaining, 1 mark final quotient.

Q16. $1 224. [3]
Working: Adults: 6 × 148 = 888. Children: 4 × 84 = 336. Total = 888 + 336 = 1 224.
Marking: 1 mark adults, 1 mark children, 1 mark total.

Q17. 430 000. [3]
Working: Town A rounded: 234 561 → 230 000. Town B: 198 744 → 200 000. Sum = 430 000.
Marking: 1 mark each rounding, 1 mark sum.

Q18. 28 cartons. [3]
Working: Trays: 6 720 ÷ 30 = 224. Cartons: 224 ÷ 8 = 28.
Marking: 1 mark trays, 1 mark cartons, 1 mark answer.

Q19. $5 797. [4]
Working: Spent: 12 375 + 8 640 = 21 015. Remaining: 50 000 − 21 015 = 28 985. Each child: 28 985 ÷ 5 = 5 797.
Marking: 1 mark total spent, 1 mark remaining, 1 mark division, 1 mark answer.

Q20. 5 912 leaflets. [4]
Working: Sent: 45 600 + 38 925 = 84 525. Remaining: 120 000 − 84 525 = 35 475. Each school: 35 475 ÷ 6 = 5 912.5 → since leaflets whole, 5 912 each with 3 left; accept 5 912.
Marking: 1 mark sent, 1 mark remaining, 1 mark division, 1 mark answer.

Caveat: This quiz is generated from syllabus-first inference; no past-paper evidence was available for Whole Numbers at P6.