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Primary 4 Mathematics Practice Paper 5

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Questions

TuitionGoWhere Practice Paper - Mathematics Primary 4

TuitionGoWhere Practice Paper (AI)
Subject: Mathematics
Level: Primary 4
Paper: Practice Paper 5 (Whole Numbers)
Duration: 45 minutes
Total Marks: 40

Name: ________________________
Class: Primary 4 _______
Date: ________________________

Instructions to Candidates

Do not open this booklet until you are told to do so.
Follow all instructions carefully.
Answer all questions.
Show your working clearly in the space provided.
The number of marks is given in brackets [ ] at the end of each question or part question.
The total number of marks for this paper is 40.

Section A: Multiple-Choice Questions (10 marks)

Questions 1 to 5 carry 2 marks each. Choose the correct answer and write its number (1, 2, 3 or 4) in the brackets provided.

1. In the number 84,372, which digit is in the ten thousands place? [2] (1) 2
(2) 7
(3) 4
(4) 8
Answer: (_____)

2. Round 67,489 to the nearest thousand. [2] (1) 67,000
(2) 67,500
(3) 68,000
(4) 70,000
Answer: (_____)

3. What is the value of the digit 5 in the number 35,821? [2] (1) 5
(2) 50
(3) 500
(4) 5,000
Answer: (_____)

4. Which of the following numbers when rounded to the nearest hundred gives 42,300? [2] (1) 42,249
(2) 42,256
(3) 42,349
(4) 42,351
Answer: (_____)

5. Write 90,007 in words. [2] (1) Ninety thousand and seven
(2) Ninety thousand and seventy
(3) Nine thousand and seven
(4) Nine thousand and seventy
Answer: (_____)

Section B: Short Answer Questions (16 marks)

Questions 6 to 13 carry 2 marks each. Show your working clearly and write your answers in the spaces provided.

6. In the number 52,648, what does the digit 6 stand for? [2]

Answer: ________________________

7. Round 18,763 to the nearest ten. [2]

Answer: ________________________

8. Arrange the following numbers in order, starting from the smallest:
34,521 ; 34,251 ; 35,421 ; 34,512 [2]

Answer: ________________________

9. Find the difference between 48,000 and 23,456. [2]

Answer: ________________________

10. A number when rounded to the nearest thousand is 56,000. What is the smallest possible value of this number? [2]

Answer: ________________________

11. Complete the number pattern:
24,500 ; 25,000 ; 25,500 ; ________ ; 26,500 [2]

Answer: ________________________

12. Express 7 ten thousands, 3 thousands, 8 hundreds, 4 tens and 9 ones as a number. [2]

Answer: ________________________

13. The population of a town is 47,382. Round this number to the nearest hundred. [2]

Answer: ________________________

Section C: Structured / Long Answer Questions (14 marks)

Questions 14 to 17 carry the marks shown. Show your working clearly and write your answers in the spaces provided.

14. The table below shows the number of visitors to the Singapore Zoo over four months. [3]

Month	Number of Visitors
January	28,456
February	31,289
March	35,672
April	29,845

(a) In which month did the zoo have the greatest number of visitors? [1]

Answer: ________________________

(b) Round the number of visitors in March to the nearest thousand. [1]

Answer: ________________________

(c) Find the total number of visitors in January and April. [1]

Answer: ________________________

15. A factory produced 45,678 toys in January. In February, it produced 3,456 fewer toys than in January. [3]

(a) How many toys did the factory produce in February? [2]

Answer: ________________________

(b) What was the total number of toys produced in the two months? [1]

Answer: ________________________

16. Study the number pattern below. [4]

Row	Number
1	12,345
2	13,456
3	14,567
4	15,678
5	?

(a) What is the number in Row 5? [2]

Answer: ________________________

(b) In which row will the number first exceed 20,000? [2]

Answer: ________________________

17. Mr Tan has $50,000. He buys a car for$ 38,450 and a motorcycle for $7,890. [4]

(a) How much money does he spend altogether? [2]

Answer: ________________________

(b) How much money does he have left? [2]

Answer: ________________________

End of Paper

Answers

TuitionGoWhere Practice Paper - Mathematics Primary 4 (Answer Key)

Subject: Mathematics
Level: Primary 4
Paper: Practice Paper 5 (Whole Numbers)
Total Marks: 40

Section A: Multiple-Choice Questions (10 marks)

1. Answer: (4)
Explanation: In the number 84,372, the digits from left to right are: 8 (ten thousands), 4 (thousands), 3 (hundreds), 7 (tens), 2 (ones). The digit in the ten thousands place is 8.
Marking: 2 marks for correct option.

2. Answer: (3)
Explanation: To round 67,489 to the nearest thousand, look at the hundreds digit (4). Since 4 < 5, we round down. The thousands digit (7) stays the same, and all digits to the right become 0. So 67,489 ≈ 67,000? Wait — 67,489: the thousands digit is 7, the hundreds digit is 4. Since 4 < 5, round down → 67,000. But option (1) is 67,000 and option (3) is 68,000. Let me recheck: 67,489 rounded to nearest thousand. The number is between 67,000 and 68,000. The halfway point is 67,500. Since 67,489 < 67,500, it rounds to 67,000. So answer should be (1) 67,000.
Correction: Answer: (1) 67,000
Marking: 2 marks for correct option.

3. Answer: (4)
Explanation: In 35,821, the digit 5 is in the thousands place. Its value is 5 × 1,000 = 5,000.
Marking: 2 marks for correct option.

4. Answer: (2)
Explanation: To round to the nearest hundred giving 42,300, the original number must be from 42,250 to 42,349.

42,249 rounds to 42,200 (hundreds digit 2, tens digit 4 < 5)
42,256 rounds to 42,300 (hundreds digit 2, tens digit 5 ≥ 5 → round up)
42,349 rounds to 42,300 (hundreds digit 3, tens digit 4 < 5)
42,351 rounds to 42,400 (hundreds digit 3, tens digit 5 ≥ 5)
Both (2) and (3) give 42,300. But typically such questions expect the smallest or a specific one. 42,256 is the smallest that rounds up to 42,300.
Marking: 2 marks for correct option.

5. Answer: (1)
Explanation: 90,007 = 90,000 + 7 = Ninety thousand and seven. Note: "and" is used before the last part when there are no hundreds or tens.
Marking: 2 marks for correct option.

Section B: Short Answer Questions (16 marks)

6. Answer: 600
Working: In 52,648, the digit 6 is in the hundreds place. Value = 6 × 100 = 600.
Marking: 2 marks (1 for identifying place, 1 for correct value).

7. Answer: 18,760
Working: To round 18,763 to the nearest ten, look at the ones digit (3). Since 3 < 5, round down. The tens digit (6) stays the same, ones become 0. → 18,760.
Marking: 2 marks for correct answer.

8. Answer: 34,251 ; 34,512 ; 34,521 ; 35,421
Working: Compare ten thousands (all 3), then thousands (all 4), then hundreds: 2, 5, 5, 5. So 34,251 is smallest. Among the rest, compare tens: 34,512 (tens=1), 34,521 (tens=2), 35,421 (thousands=5). Order: 34,251, 34,512, 34,521, 35,421.
Marking: 2 marks for fully correct order; 1 mark if only one error.

9. Answer: 24,544
Working:

  48,000
- 23,456
--------
  24,544

Subtract with regrouping: 0 - 6 → borrow from thousands, etc.
Marking: 2 marks for correct answer; 1 mark for correct method with calculation error.

10. Answer: 55,500
Working: When rounding to nearest thousand gives 56,000, the number is in [55,500, 56,499]. Smallest possible = 55,500.
Marking: 2 marks for correct answer; 1 mark for understanding range but wrong endpoint.

11. Answer: 26,000
Working: Pattern increases by 500 each time: 24,500 → 25,000 (+500) → 25,500 (+500) → 26,000 (+500) → 26,500.
Marking: 2 marks for correct answer.

12. Answer: 73,849
Working: 7 × 10,000 = 70,000; 3 × 1,000 = 3,000; 8 × 100 = 800; 4 × 10 = 40; 9 × 1 = 9. Sum = 73,849.
Marking: 2 marks for correct answer; 1 mark for correct place value expansion with addition error.

13. Answer: 47,400
Working: 47,382 → hundreds digit is 3, tens digit is 8. Since 8 ≥ 5, round up: 3 becomes 4, tens and ones become 0 → 47,400.
Marking: 2 marks for correct answer.

Section C: Structured / Long Answer Questions (14 marks)

14.
(a) Answer: March [1]
Reasoning: Compare visitors: 28,456 (Jan), 31,289 (Feb), 35,672 (Mar), 29,845 (Apr). Greatest is 35,672 in March.
Marking: 1 mark for correct month.

(b) Answer: 36,000 [1]
Working: March visitors = 35,672. Hundreds digit = 6 ≥ 5, so round up thousands: 35,000 → 36,000.
Marking: 1 mark for correct rounded value.

(c) Answer: 58,301 [1]
Working:

  28,456
+ 29,845
--------
  58,301

Marking: 1 mark for correct sum.

15.
(a) Answer: 42,222 [2]
Working: February = January − 3,456 = 45,678 − 3,456

  45,678
-  3,456
--------
  42,222

Marking: 2 marks for correct answer; 1 mark for correct subtraction method with error.

(b) Answer: 87,900 [1]
Working: Total = 45,678 + 42,222 = 87,900

  45,678
+ 42,222
--------
  87,900

Marking: 1 mark for correct total (follow-through from (a) allowed if addition correct).

16.
(a) Answer: 16,789 [2]
Working: Each row increases by 1,111:
Row 1: 12,345
Row 2: 12,345 + 1,111 = 13,456
Row 3: 13,456 + 1,111 = 14,567
Row 4: 14,567 + 1,111 = 15,678
Row 5: 15,678 + 1,111 = 16,789
Marking: 2 marks for correct answer; 1 mark for identifying pattern (+1,111) but calculation error.

(b) Answer: Row 8 [2]
Working: Continue pattern:
Row 5: 16,789
Row 6: 16,789 + 1,111 = 17,900
Row 7: 17,900 + 1,111 = 19,011
Row 8: 19,011 + 1,111 = 20,122 > 20,000
First row exceeding 20,000 is Row 8.
Alternative: General term = 12,345 + (n−1)×1,111 > 20,000 → (n−1)×1,111 > 7,655 → n−1 > 6.89 → n ≥ 8.
Marking: 2 marks for correct row; 1 mark for correct continuation with minor error.

17.
(a) **Answer: $46,340** [2] **Working:** Total spent =$ 38,450 + $7,890

  38,450
+  7,890
--------
  46,340

Marking: 2 marks for correct sum; 1 mark for correct method with addition error.

(b) **Answer: $3,660** [2] **Working:** Money left =$ 50,000 − $46,340

  50,000
- 46,340
--------
   3,660

Marking: 2 marks for correct answer; 1 mark for correct subtraction method with error (follow-through from (a) allowed if subtraction correct).

Marking Summary

Section A: 5 × 2 = 10 marks
Section B: 8 × 2 = 16 marks
Section C: 3 + 3 + 4 + 4 = 14 marks
Total: 40 marks

Common Mistakes to Watch

Rounding: Confusing "round down" when the next digit is 5 or more. Remember: 5,6,7,8,9 → round up; 0,1,2,3,4 → round down.
Place value vs. digit value: "Which digit is in the thousands place?" asks for the digit (0-9). "What does the digit stand for?" asks for its value (e.g., 3,000).
Number patterns: Check the difference between consecutive terms carefully. It may not always be the same (but in P4 it usually is).
Subtraction with zeros: Regrouping across multiple zeros (e.g., 50,000 − 46,340) is a common error point. Practise "borrowing from the first non-zero digit".
Writing numbers in words: Use "and" only before the last two digits if they are not zero, and no hundreds/tens. E.g., 90,007 = "Ninety thousand and seven", but 90,070 = "Ninety thousand and seventy".