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Primary 4 Mathematics Practice Paper 3

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Questions

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TuitionGoWhere Practice Paper - Mathematics Primary 4

TuitionGoWhere Practice Paper (AI) — Version 3

Subject: Mathematics
Level: Primary 4
Paper: Practice Paper 3 (Whole Numbers)
Duration: 45 minutes
Total Marks: 50

Name: ________________________
Class: Primary 4 _______
Date: _______________

Instructions to Candidates

  1. Do not open this booklet until you are told to do so.
  2. Follow all instructions carefully.
  3. Answer all questions.
  4. Show your working clearly in the spaces provided.
  5. The number of marks is given in brackets [ ] at the end of each question or part question.
  6. The total marks for this paper is 50.

Section A: Multiple-Choice Questions (10 marks)

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

1. In the number 68,429, which digit is in the thousands place? [2]

(1) 6
(2) 8
(3) 4
(4) 2

Answer: (____)

2. What does the digit 7 stand for in 57,381? [2]

(1) 7
(2) 70
(3) 700
(4) 7000

Answer: (____)

3. Round 42,678 to the nearest hundred. [2]

(1) 42,600
(2) 42,700
(3) 43,000
(4) 42,680

Answer: (____)

4. Which of the following numbers when rounded to the nearest thousand gives 35,000? [2]

(1) 34,499
(2) 34,500
(3) 35,500
(4) 35,501

Answer: (____)

5. Singapore's population density is about 8,358 people per square kilometre. Round this number to the nearest thousand. [2]

(1) 8,000
(2) 8,300
(3) 8,400
(4) 9,000

Answer: (____)

Section B: Short-Answer Questions (20 marks)

Questions 6 to 15 carry 2 marks each. Show your working clearly and write your answers in the spaces provided. For questions which require units, give your answers in the units stated.

6. Write 73,015 in words. [2]

7. In the number 92,406, what is the value of the digit 9? [2]

8. Arrange the following numbers in order, starting from the smallest. [2]

54,321 ; 54,231 ; 53,421 ; 54,132

9. Complete the number pattern. [2]

28,500 ; 28,000 ; 27,500 ; ________ ; 26,500

10. Round 67,452 to the nearest ten. [2]

11. A number when rounded to the nearest hundred is 45,300. What is the greatest possible value of this number? [2]

12. The National Library Building has 16 floors. Each floor has 2,345 books. How many books are there in total? [2]

13. Find the product of 4,321 and 8. [2]

14. Divide 56,784 by 6. [2]

15. A factory produced 12,345 toys in January and 15,678 toys in February. How many more toys were produced in February than in January? [2]

Section C: Problem Sums (20 marks)

Questions 16 to 20 carry 4 marks each. Show your working clearly and write your answers in the spaces provided.

16. Mr Tan bought a car for 68,450.Hepaidadepositof68,450. He paid a deposit of 15,000 and paid the rest in 5 equal monthly instalments. How much was each monthly instalment? [4]

Answer: $______________

17. A school has 1,248 students. There are 32 classes. Each class has the same number of students. How many students are there in each class? [4]

Answer: ______________ students

18. The table below shows the number of visitors to the Singapore Zoo over three days. [4]

<image_placeholder> id: Q18-fig1 type: table linked_question: Q18 description: Table showing number of visitors to Singapore Zoo over three days labels: Day, Number of Visitors values: Friday: 2,345; Saturday: 4,567; Sunday: 3,892 must_show: Clear table with headers and three rows of data </image_placeholder>

(a) How many visitors were there on Saturday and Sunday altogether?
(b) How many more visitors were there on Saturday than on Friday?

(a) ______________ visitors
(b) ______________ visitors

19. Mrs Lim had 50,000.Sheboughtarefrigeratorfor50,000. She bought a refrigerator for 2,850 and a washing machine for $1,650. She then divided the remaining money equally among her 4 children. How much did each child receive? [4]

Answer: $______________

20. A rectangular field has a length of 125 m and a breadth of 85 m. Find the perimeter of the field. If a runner runs around the field 4 times, what is the total distance covered? [4]

Answer: ______________ m

End of Paper

Answers

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TuitionGoWhere Practice Paper - Mathematics Primary 4 (Answer Key)

Subject: Mathematics
Level: Primary 4
Paper: Practice Paper 3 (Whole Numbers)
Total Marks: 50

Section A: Multiple-Choice Questions (10 marks)

1. Answer: (2) — 8 [2 marks]

Explanation:
In the number 68,429, the digits from left to right represent:

  • 6 → ten thousands (60,000)
  • 8 → thousands (8,000)
  • 4 → hundreds (400)
  • 2 → tens (20)
  • 9 → ones (9)

The digit in the thousands place is 8.

Common mistake: Confusing "thousands place" with "ten thousands place" (which is 6).

2. Answer: (4) — 7000 [2 marks]

Explanation:
In 57,381, the digit 7 is in the thousands place.
Value = 7 × 1,000 = 7,000.

Place value breakdown:

  • 5 → 50,000 (ten thousands)
  • 7 → 7,000 (thousands)
  • 3 → 300 (hundreds)
  • 8 → 80 (tens)
  • 1 → 1 (ones)

3. Answer: (2) — 42,700 [2 marks]

Explanation:
To round 42,678 to the nearest hundred:

  • Look at the tens digit (7).
  • Since 7 ≥ 5, round up the hundreds digit (6 → 7).
  • 42,678 → 42,700.

Rounding rule: If the digit to the right of the target place is 5 or more, round up. If less than 5, round down.

4. Answer: (2) — 34,500 [2 marks]

Explanation:
When rounding to the nearest thousand, numbers from 34,500 to 35,499 round to 35,000.

  • 34,499 rounds to 34,000 (hundreds digit 4 < 5)
  • 34,500 rounds to 35,000 (hundreds digit 5 ≥ 5)
  • 35,500 rounds to 36,000
  • 35,501 rounds to 36,000

The smallest number that rounds to 35,000 is 34,500.

5. Answer: (4) — 9,000 [2 marks]

Explanation:
Round 8,358 to the nearest thousand:

  • Look at the hundreds digit (3).
  • Since 3 < 5, round down.
  • 8,358 → 8,000? Wait — check again!

Correction: 8,358 has thousands digit 8 and hundreds digit 3. Since 3 < 5, we round down to 8,000.
But option (1) is 8,000 and option (4) is 9,000. Let me re-read the question.

The question says: "Singapore's population density is about 8,358 people per square kilometre. Round this number to the nearest thousand."

8,358 rounded to nearest thousand: hundreds digit is 3 (< 5), so round down to 8,000.

Answer should be (1) 8,000. The options in the question paper have an error — (4) 9,000 is incorrect. The correct answer is 8,000 (Option 1).

Marking note: Award 2 marks for Option (1). If a student selected (4) due to the error, award 1 mark for correct rounding method shown in working.

Section B: Short-Answer Questions (20 marks)

6. Answer: Seventy-three thousand and fifteen [2 marks]

Explanation:
73,015 in words:

  • 73,000 → seventy-three thousand
  • 15 → fifteen
  • Combined: seventy-three thousand and fifteen

Note: "And" is used before the last two digits (tens and ones) when there are no hundreds. Do not write "seventy-three thousand fifteen" (missing "and").

7. Answer: 90,000 [2 marks]

Explanation:
In 92,406, the digit 9 is in the ten thousands place.
Value = 9 × 10,000 = 90,000.

Place value check:
9 | 2 | 4 | 0 | 6
↓ ↓ ↓ ↓ ↓
10,000 1,000 100 10 1

8. Answer: 53,421 ; 54,132 ; 54,231 ; 54,321 [2 marks]

Explanation:
Compare numbers digit by digit from left to right (ten thousands → thousands → hundreds → tens → ones):

  • All have 5 ten thousands → compare thousands
  • 53,421 has 3 thousands (smallest)
  • The other three have 4 thousands → compare hundreds
    • 54,132 has 1 hundred
    • 54,231 has 2 hundreds
    • 54,321 has 3 hundreds (largest)

Order: 53,421 < 54,132 < 54,231 < 54,321

9. Answer: 27,000 [2 marks]

Explanation:
Pattern: 28,500 ; 28,000 ; 27,500 ; ____ ; 26,500
Each step decreases by 500.
27,500 − 500 = 27,000
Check: 27,000 − 500 = 26,500 ✓

10. Answer: 67,450 [2 marks]

Explanation:
Round 67,452 to the nearest ten:

  • Look at the ones digit (2).
  • Since 2 < 5, round down (keep tens digit 5).
  • 67,452 → 67,450

11. Answer: 45,349 [2 marks]

Explanation:
A number rounded to the nearest hundred gives 45,300.
This means the original number is in the range: 45,250 to 45,349 (inclusive).

  • 45,250 rounds up to 45,300 (tens digit 5)
  • 45,349 rounds down to 45,300 (tens digit 4)
  • 45,350 would round up to 45,400

Greatest possible value = 45,349.

12. Answer: 37,520 books [2 marks]

Working:
16 × 2,345 = ?
2,345 × 10 = 23,450
2,345 × 6 = 14,070
23,450 + 14,070 = 37,520

Alternative (vertical multiplication):

    2 3 4 5
  ×     1 6
  ---------
    1 4 0 7 0  (2,345 × 6)
  2 3 4 5 0    (2,345 × 10)
  ---------
  3 7 5 2 0

13. Answer: 34,568 [2 marks]

Working:
4,321 × 8 = ?
4,000 × 8 = 32,000
300 × 8 = 2,400
20 × 8 = 160
1 × 8 = 8
32,000 + 2,400 + 160 + 8 = 34,568

Vertical multiplication:

    4 3 2 1
  ×     8
  ---------
  3 4 5 6 8

14. Answer: 9,464 [2 marks]

Working:
56,784 ÷ 6 = ?
Use long division:

      9 4 6 4
  6 ) 5 6 7 8 4
      5 4
      ---
        2 7
        2 4
        ---
          3 8
          3 6
          ---
            2 4
            2 4
            ---
              0

Check: 9,464 × 6 = 56,784 ✓

15. Answer: 3,333 [2 marks]

Working:
February: 15,678
January: 12,345
Difference: 15,678 − 12,345 = 3,333

Subtraction:

  1 5 6 7 8
- 1 2 3 4 5
-----------
    3 3 3 3

Section C: Problem Sums (20 marks)

16. Answer: $10,690 [4 marks]

Working:
Cost of car = 68,450Deposit=68,450 Deposit = 15,000
Remaining amount = 68,450−68,450 − 15,000 = **53,450∗∗Numberofinstalments=5Eachinstalment=53,450** Number of instalments = 5 Each instalment = 53,450 ÷ 5 = $10,690

Step-by-step:

  1. 68,450−68,450 − 15,000 = $53,450 [1 mark]
  2. 53,450÷5=53,450 ÷ 5 = 10,690 [1 mark]
  3. Final answer: $10,690 [2 marks]

Mark breakdown:

  • Correct subtraction: 1 mark
  • Correct division: 1 mark
  • Correct final answer with unit: 2 marks

17. Answer: 39 students [4 marks]

Working:
Total students = 1,248
Number of classes = 32
Students per class = 1,248 ÷ 32 = 39

Long division:

      3 9
  3 2 ) 1 2 4 8
        9 6
        ---
        2 8 8
        2 8 8
        ---
          0

Check: 39 × 32 = 1,248 ✓
(39 × 30 = 1,170; 39 × 2 = 78; 1,170 + 78 = 1,248)

Mark breakdown:

  • Correct division method: 2 marks
  • Correct answer: 2 marks

18. [4 marks]

Table data (from image placeholder):

  • Friday: 2,345 visitors
  • Saturday: 4,567 visitors
  • Sunday: 3,892 visitors

(a) Saturday + Sunday = 4,567 + 3,892 = 8,459 visitors [2 marks]

Working:

  4 5 6 7
+ 3 8 9 2
---------
  8 4 5 9

(b) Saturday − Friday = 4,567 − 2,345 = 2,222 visitors [2 marks]

Working:

  4 5 6 7
- 2 3 4 5
---------
  2 2 2 2

Mark breakdown per part:

  • Correct operation identified: 1 mark
  • Correct calculation and answer with unit: 1 mark

19. Answer: $11,375 [4 marks]

Working:
Total money = 50,000Refrigerator=50,000 Refrigerator = 2,850
Washing machine = 1,650Totalspent=1,650 Total spent = 2,850 + 1,650=∗∗1,650 = **4,500**
Remaining = 50,000−50,000 − 4,500 = **45,500∗∗Dividedamong4children=45,500** Divided among 4 children = 45,500 ÷ 4 = $11,375

Step-by-step:

  1. 2,850+2,850 + 1,650 = $4,500 [1 mark]
  2. 50,000−50,000 − 4,500 = $45,500 [1 mark]
  3. 45,500÷4=45,500 ÷ 4 = 11,375 [1 mark]
  4. Final answer with unit: $11,375 [1 mark]

Check: 11,375×4=11,375 × 4 = 45,500; 45,500+45,500 + 4,500 = $50,000 ✓

20. Answer: 1,680 m [4 marks]

Working:
Length = 125 m
Breadth = 85 m
Perimeter of rectangle = 2 × (Length + Breadth)
= 2 × (125 + 85)
= 2 × 210
= 420 m

Distance for 4 rounds = 420 × 4 = 1,680 m

Step-by-step:

  1. Perimeter = 2 × (125 + 85) = 2 × 210 = 420 m [2 marks]
  2. Total distance = 420 × 4 = 1,680 m [2 marks]

Mark breakdown:

  • Correct perimeter formula and calculation: 2 marks
  • Correct multiplication for 4 rounds: 2 marks

Total Marks: 50

General Marking Notes for Teachers

  1. Units matter: Deduct ½ mark for missing or incorrect units (e.g., writing "39" instead of "39 students" or "$10,690" instead of "10,690").
  2. Working required: For 2-mark and 4-mark questions, award method marks even if final answer is wrong due to calculation error.
  3. Rounding questions: Accept both "round up/down" language and "look at the digit to the right" explanations.
  4. Number patterns: Accept any clear demonstration of the pattern rule (e.g., "−500 each time").
  5. Problem sums: Encourage students to write number statements (e.g., "68,450−68,450 − 15,000 = $53,450") for each step.