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Primary 4 Mathematics Practice Paper 3

Free P4 Maths Practice Paper 3, Ox AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 4 Mathematics AI Generated Generated by Ox Alpha Updated 2026-08-27

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TuitionGoWhere Practice Paper - Mathematics Primary 4

TuitionGoWhere Practice Paper (AI)

Subject: Mathematics Level: Primary 4 Paper: Practice Paper — Whole Numbers (Version 3 of 5) Duration: 50 minutes Total Marks: 40 Name: ________________________________ Class: ________________________________ Date: ________________________________

Instructions to Students

Answer all 20 questions. Do not use a calculator.
Section A: write your answer in the space provided. Section B and C: show your working clearly.
The marks for each question are shown in brackets ( ).
Note: This AI-generated practice paper is aligned to the Primary 4 mathematics syllabus and built from syllabus-based templates. It is not derived from past-year examination papers.

Section A: Short Answer Questions (Questions 1–10)

(10 marks — 1 mark each. Write your answer in the space provided.)

Question 1 (1 mark) In the number 84,267, which digit is in the thousands place?

Answer: ______________________

Question 2 (1 mark) What does the digit 9 stand for in the number 39,581?

Answer: ______________________

Question 3 (1 mark) Write sixty-eight thousand and forty-five in figures.

Answer: ______________________

Question 4 (1 mark) Write 52,306 in words.

Answer: ____________________________________________

Question 5 (1 mark) Fill in the blank with the symbol > or <:

71,204 ________ 70,998

Answer: ______________________

Question 6 (1 mark) Round 46,528 to the nearest hundred.

Answer: ______________________

Question 7 (1 mark) The table shows the number of residents in four housing estates. Write the names of the estates in order, starting with the fewest residents.

Image pending generation: table for Q7.

Answer: ____________________________________________

Question 8 (1 mark) Complete the number pattern:

12,500; 25,000; 37,500; ________

Answer: ______________________

Question 9 (1 mark) Round 89,950 to the nearest thousand.

Answer: ______________________

Question 10 (1 mark) Use each of the digits 5, 0, 7, 2, 9 once to form the largest possible 5-digit number.

Answer: ______________________

Section B: Short Structured Questions (Questions 11–15)

(10 marks — 2 marks each. Show your working where needed.)

Question 11 (2 marks) A number is rounded to the nearest thousand and the result is 54,000. What is the smallest possible number it could have been? Explain your choice.

Working / Answer: ____________________________________________

Question 12 (2 marks) The number line below shows three marked points, P, Q and R. Which point is closest to 40,000? Explain how you know.

Image pending generation: diagram for Q12.

Working / Answer: ____________________________________________

Question 13 (2 marks) Use each of the digits 0, 1, 3, 6, 8 once to form: (a) the smallest odd 5-digit number, (b) the largest even 5-digit number.

(a) Answer: ______________________ (b) Answer: ______________________

Question 14 (2 marks) Find the missing number in the pattern and state the rule of the pattern:

96,000; 88,000; 80,000; ________; 64,000

Missing number: ______________________ Rule: ____________________________________________

Question 15 (2 marks) Round each number to the nearest thousand, then use the rounded numbers to estimate the sum. Use the symbol ≈ in your answer.

27,489 + 41,206

Working / Answer: ____________________________________________

Section C: Word Problems (Questions 16–20)

(20 marks — 4 marks each. Show your working clearly. Write your final answers with units where appropriate.)

Question 16 (4 marks) A concert was held at a stadium over two days. On Saturday, 34,758 people attended. On Sunday, 29,932 people attended. (a) How many more people attended on Saturday than on Sunday? (b) Round both attendances to the nearest thousand, then find the difference between the rounded numbers.

Working / Answer (a): _________________________________________

Working / Answer (b): _________________________________________

Question 17 (4 marks) A public library recorded book donations for four months:

Month	Books donated
January	12,450
February	9,875
March	13,200
April	10,425

(a) Find the total number of books donated in the four months. (b) The library's yearly target is 50,000 books. How many more books are needed to reach the target?

Working / Answer (a): _________________________________________

Working / Answer (b): _________________________________________

Question 18 (4 marks) A mystery 5-digit number follows these clues:

The ten thousands digit is 6.
The thousands digit is 2 less than the ten thousands digit.
The hundreds digit is double the thousands digit.
The tens digit is 0.
The ones digit is half the hundreds digit.

(a) Write the number in figures. (b) Write the number in words.

Working / Answer (a): _________________________________________ Answer (b): ____________________________________________

Question 19 (4 marks) Mr Tan says, "When 57,462 is rounded to the nearest thousand, the answer is 58,000." Is Mr Tan correct? Give the correct rounded value if he is wrong, and explain your reasoning by referring to the place values involved.

Working / Answer: ____________________________________________

Question 20 (4 marks) A charity walkathon has a target of 80,000 laps.

Week 1: 26,480 laps completed
Week 2: 31,150 laps completed
Week 3: 18,905 laps completed

(a) Find the total number of laps completed in the three weeks. (b) How many laps short of the target are the participants? (c) Round the shortfall in (b) to the nearest hundred.

Working / Answer (a): _________________________________________ Working / Answer (b): _________________________________________ Answer (c): ______________________

END OF PAPER

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Answers

TuitionGoWhere Practice Paper - Mathematics Primary 4 — Answer Key (Version 3 of 5)

TuitionGoWhere Practice Paper (AI)

Total Marks: 40 | Duration: 50 minutes Syllabus-aligned AI-generated content; not past-year derived.

Section A (Questions 1–10) — 10 marks

Q1 (1 mark) — Answer: 4 Teaching note: In a 5-digit number the places from left to right are ten thousands, thousands, hundreds, tens, ones. In 84,267: 8 = ten thousands, 4 = thousands, 2 = hundreds, 6 = tens, 7 = ones. Common mistake: confusing the thousands place with the ten thousands place.

Q2 (1 mark) — Answer: 9,000 Teaching note: The 9 is in the thousands place, so it stands for 9 × 1,000 = 9,000. "Stands for" asks for the digit's value, not the digit itself.

Q3 (1 mark) — Answer: 68,045 Teaching note: "Sixty-eight thousand" gives 68,000; "and forty-five" adds 45, giving 68,045. The zero holds the hundreds place. Common mistake: writing 68,450 (swapping tens and hundreds).

Q4 (1 mark) — Answer: fifty-two thousand, three hundred and six Teaching note: Split by place value: 52,000 + 300 + 6. Say the thousands part first, then the hundreds/tens/ones part.

Q5 (1 mark) — Answer: > Teaching note: Both numbers have 7 ten thousands. Compare the thousands digits: 1 > 0, so 71,204 > 70

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TuitionGoWhere Practice Paper - Mathematics Primary 4 — Answer Key (Version 3 of 5)

TuitionGoWhere Practice Paper (AI)

Total Marks: 40 | Duration: 50 minutes Syllabus-aligned AI-generated content; not past-year derived.

Section A (Questions 1–10) — 10 marks

Q1 (1 mark) — Answer: 4 Teaching note: Places left to right are ten thousands, thousands, hundreds, tens, ones. In 84,267: 8 = ten thousands, 4 = thousands, 2 = hundreds, 6 = tens, 7 = ones. Common mistake: confusing the thousands place with the ten thousands place.

Q2 (1 mark) — Answer: 9,000 Teaching note: The 9 is in the thousands place, so it stands for 9 × 1,000 = 9,000. "Stands for" asks for the digit's value, not the digit itself.

Q3 (1 mark) — Answer: 68,045 Teaching note: "Sixty-eight thousand" = 68,000; "and forty-five" adds 45. The zero holds the hundreds place. Common mistake: writing 68,450 (swapping tens and hundreds).

Q4 (1 mark) — Answer: fifty-two thousand, three hundred and six Teaching note: Split by place value: 52,000 + 300 + 6. Say the thousands part first, then the rest.

Q5 (1 mark) — Answer: > Teaching note: Both have 7 ten thousands. Compare thousands digits: 1 > 0, so 71,204 > 70,998.

Q6 (1 mark) — Answer: 46,500 Teaching note: Rounding to the nearest hundred, look at the tens digit (2). Since 2 < 5, round down: 46,528 → 46,500.

Q7 (1 mark) — Answer: Greenridge, Lakeside Grove, Hillview Heights, Palm Meadows Teaching note: Compare the resident figures: 27,480 < 27,840 < 29,305 < 30,125. All have 2 ten thousands except Palm Meadows (3), so compare thousands digits carefully.

Q8 (1 mark) — Answer: 50,000 Teaching note: The pattern increases by 12,500 each step: 12,500 → 25,000 → 37,500 → 50,000.

Q9 (1 mark) — Answer: 90,000 Teaching note: Look at the hundreds digit (9). Since 9 ≥ 5, round the thousands digit up: 89,950 → 90,000. Common mistake: answering 89,000 by ignoring the carry into the ten thousands place.

Q10 (1 mark) — Answer: 97,520 Teaching note: For the largest number, place digits in descending order from the ten thousands place: 9, 7, 5, 2, 0.

Section B (Questions 11–15) — 10 marks

Q11 (2 marks) — Answer: 53,500 Explanation: Numbers from 53,500 up to 54,499 round to 54,000 when rounded to the nearest thousand. Any number below 53,500 rounds down to 53,000, so the smallest possible number is 53,500. (1 mark for answer, 1 mark for reasoning.)

Q12 (2 marks) — Answer: Point Q Explanation: Distance from 40,000: P is |40,000 − 24,000| = 16,000 away; Q is |40,000 − 38,000| = 2,000 away; R is |52,000 − 40,000| = 12,000 away. Q has the smallest distance, so Q is closest to 40,000.

Q13 (2 marks) (a) Answer: 10,683 (b) Answer: 86,310 Teaching note (a): The number must end in an odd digit (1 or 3). Ending in 3 lets the smallest remaining digits lead: 1, 0, 6, 8 → 10,683 (ending in 1 gives 30,681, which is larger). Teaching note (b): The number must end in an even digit (0, 6 or 8). Placing 0 last allows 8, 6, 3, 1 in front → 86,310, larger than any option ending in 6 or 8.

Q14 (2 marks) — Missing number: 72,000; Rule: subtract 8,000 each time (count back in 8,000s) Teaching note: 96,000 − 88,000 = 8,000 and 88,000 − 80,000 = 8,000, confirming a constant decrease of 8,000. Check: 80,000 − 8,000 = 72,000 and 72,000 − 8,000 = 64,000. ✓

Q15 (2 marks) — Answer: 27,489 + 41,206 ≈ 27,000 + 41,000 = 68,000 Teaching note: 27,489 rounds to 27,000 (hundreds digit 4 < 5); 41,206 rounds to 41,000 (hundreds digit 2 < 5). Accept 68,000 with correct rounding shown. (Actual sum 68,695 may be mentioned but the estimate must use rounded values.)

Section C (Questions 16–20) — 20 marks

Q16 (4 marks) (a) 4,826 more people. Working: 34,758 − 29,932 = 4,826. (b) 5,000. Working: 34,758 ≈ 35,000 and 29,932 ≈ 30,000; 35,000 − 30,000 = 5,000. Teaching note: In (b), 29,932 rounds up because the hundreds digit is 9. Marks: 2 for (a), 2 for (b).

Q17 (4 marks) (a) 45,950 books. Working: 12,450 + 9,875 = 22,325; 22,325 + 13,200 = 35,525; 35,525 + 10,425 = 45,950. (b) 4,050 more books. Working: 50,000 − 45,950 = 4,050. Marks: 2 for (a), 2 for (b).

Q18 (4 marks) (a) 64,804 Working: ten thousands = 6; thousands = 6 − 2 = 4; hundreds = 2 × 4 = 8; tens = 0; ones = 8 ÷ 2 = 4. (b) sixty-four thousand, eight hundred and four Marks: 2 for (a), 2 for (b).

Q19 (4 marks) — Mr Tan is incorrect. Correct answer: 57,000. Explanation: To round 57,462 to the nearest thousand, look at the hundreds digit, which is 4. Since 4 < 5, we round down, keeping the thousands digit as 7: 57,462 → 57,000. Mr Tan likely looked at the tens/ones digits or mistakenly rounded the thousands digit up. Marks: 1 for identifying error, 1 for correct value, 2 for clear reasoning about place values.

Q20 (4 marks) (a) 76,535 laps. Working: 26,480 + 31,150 = 57,630; 57,630 + 18,905 = 76,535. (b) 3,465 laps short. Working: 80,000 − 76,535 = 3,465. (c) 3,500. Working: rounding 3,465 to the nearest hundred, the tens digit is 6 ≥ 5, so round up: 3,465 → 3,500. Marks: 2 for (a), 1 for (b), 1 for (c).

END OF ANSWER KEY