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Primary 3 Mathematics Practice Paper 5
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Questions
TuitionGoWhere Practice Paper - Mathematics Primary 3
TuitionGoWhere Practice Paper (AI)
Subject: Mathematics
Level: Primary 3
Paper: Practice Paper 5 (Whole Numbers)
Duration: 45 minutes
Total Marks: 50
Name: _______________________
Class: Primary 3 _______
Date: _______________________
Instructions to Candidates
- Do not open this booklet until you are told to do so.
- Follow all instructions carefully.
- Answer all questions.
- Write your answers in this booklet.
- The number of marks is given in brackets [ ] at the end of each question or part question.
- The total marks for this paper is 50.
- You may use a calculator for this paper.
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 4 729, which digit is in the hundreds place? [2]
(1) 4
(2) 7
(3) 2
(4) 9
2. What is the value of the digit 6 in the number 3 685? [2]
(1) 6
(2) 60
(3) 600
(4) 6 000
3. Which of the following numbers is the smallest? [2]
(1) 2 487
(2) 2 478
(3) 2 847
(4) 2 874
4. Round 5 362 to the nearest hundred. [2]
(1) 5 300
(2) 5 360
(3) 5 400
(4) 5 000
5. What is 100 more than 4 899? [2]
(1) 4 799
(2) 4 999
(3) 5 899
(4) 5 999
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.
6. Write 7 045 in words. [2]
7. Write the number: Five thousand, three hundred and twelve. [2]
8. What is the missing number in the pattern below? [2]
3 450, 3 500, 3 550, _______, 3 650
Answer: _______________
9. Arrange the following numbers in order, starting from the greatest. [2]
4 092, 4 209, 4 029, 4 290
Answer: _______________, _______________, _______________, _______________
10. Form the smallest 4-digit even number using the digits 3, 0, 7, 5. [2]
Answer: _______________
11. Find the sum of 2 468 and 3 527. [2]
Answer: _______________
12. Find the difference between 8 000 and 3 476. [2]
Answer: _______________
13. A number is 500 less than 6 300. What is the number? [2]
Answer: _______________
14. Complete the number pattern. [2]
7 200, 7 100, 7 000, _______, 6 800
Answer: _______________
15. In the number 5 083, the digit 8 stands for _______ tens. [2]
Answer: _______________
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. There are 3 456 visitors at the Singapore Zoo on Saturday. On Sunday, there are 1 234 more visitors than on Saturday. [4]
(a) How many visitors are there on Sunday?
(b) How many visitors are there on both days altogether?
Working:
(a) _________________________________________________________
(b) _________________________________________________________
Answer: (a) _______________ visitors
(b) _______________ visitors
17. A factory produced 5 600 toys in January. It produced 800 fewer toys in February than in January. [4]
(a) How many toys were produced in February?
(b) How many toys were produced in both months altogether?
Working:
(a) _________________________________________________________
(b) _________________________________________________________
Answer: (a) _______________ toys
(b) _______________ toys
18. Muthu has 2 450 stickers. He has 350 more stickers than Ali. [4]
(a) How many stickers does Ali have?
(b) How many stickers do they have altogether?
Working:
(a) _________________________________________________________
(b) _________________________________________________________
Answer: (a) _______________ stickers
(b) _______________ stickers
19. A library has 4 320 English books and 2 185 Chinese books. [4]
(a) How many more English books than Chinese books are there?
(b) If 500 English books are borrowed, how many English books are left?
Working:
(a) _________________________________________________________
(b) _________________________________________________________
Answer: (a) _______________ books
(b) _______________ books
20. The mass of a box of apples is 3 250 g. The mass of a box of oranges is 1 475 g. [4]
(a) What is the total mass of the two boxes?
(b) What is the difference in mass between the two boxes?
Working:
(a) _________________________________________________________
(b) _________________________________________________________
Answer: (a) _______________ g
(b) _______________ g
End of Paper
Total Marks: 50
Answers
TuitionGoWhere Practice Paper - Mathematics Primary 3 (Answer Key)
Subject: Mathematics
Level: Primary 3
Paper: Practice Paper 5 (Whole Numbers)
Total Marks: 50
Section A: Multiple Choice Questions (10 marks)
1. In the number 4 729, which digit is in the hundreds place? [2]
Answer: (2) 7
Explanation:
In the number 4 729:
- 4 is in the thousands place (value = 4 000)
- 7 is in the hundreds place (value = 700)
- 2 is in the tens place (value = 20)
- 9 is in the ones place (value = 9)
Common mistake: Confusing the digit itself (7) with its value (700). The question asks for the digit, not the value.
2. What is the value of the digit 6 in the number 3 685? [2]
Answer: (3) 600
Explanation:
In the number 3 685:
- 3 is in the thousands place (value = 3 000)
- 6 is in the hundreds place (value = 600)
- 8 is in the tens place (value = 80)
- 5 is in the ones place (value = 5)
The value of a digit depends on its place value. Since 6 is in the hundreds place, its value is 6 × 100 = 600.
Common mistake: Choosing (1) 6 (the digit itself) or (2) 60 (tens place value).
3. Which of the following numbers is the smallest? [2]
Answer: (2) 2 478
Explanation:
Compare the numbers digit by digit from left to right (thousands → hundreds → tens → ones):
| Number | Thousands | Hundreds | Tens | Ones |
|---|---|---|---|---|
| 2 487 | 2 | 4 | 8 | 7 |
| 2 478 | 2 | 4 | 7 | 8 |
| 2 847 | 2 | 8 | 4 | 7 |
| 2 874 | 2 | 8 | 7 | 4 |
All numbers have 2 thousands. Compare hundreds: 4 is smaller than 8, so 2 487 and 2 478 are smaller than 2 847 and 2 874.
Between 2 487 and 2 478: both have 4 hundreds. Compare tens: 7 < 8, so 2 478 is the smallest.
4. Round 5 362 to the nearest hundred. [2]
Answer: (3) 5 400
Explanation:
To round to the nearest hundred, look at the tens digit:
- 5 362 → tens digit is 6
- Since 6 ≥ 5, we round up the hundreds digit
- 5 300 becomes 5 400
Rule: If the tens digit is 5 or more, round up. If less than 5, round down.
5. What is 100 more than 4 899? [2]
Answer: (2) 4 999
Explanation:
4 899 + 100 = 4 999
Adding 100 increases the hundreds digit by 1:
- 4 899 has 8 hundreds
- 8 hundreds + 1 hundred = 9 hundreds
- Result: 4 999
Common mistake: Choosing (3) 5 899 (adding 1 000 instead of 100) or (4) 5 999 (adding 1 100).
Section B: Short Answer Questions (20 marks)
6. Write 7 045 in words. [2]
Answer: Seven thousand and forty-five
Marking:
- 1 mark for "Seven thousand"
- 1 mark for "forty-five" (accept "and forty-five")
Note: The zero in the hundreds place is not read aloud. "Zero forty-five" is incorrect.
7. Write the number: Five thousand, three hundred and twelve. [2]
Answer: 5 312
Marking:
- 1 mark for correct thousands and hundreds (5 3__)
- 1 mark for correct tens and ones (__12)
Explanation:
- Five thousand = 5 000
- Three hundred = 300
- Twelve = 12
- Total = 5 000 + 300 + 12 = 5 312
8. What is the missing number in the pattern below? [2]
3 450, 3 500, 3 550, _______, 3 650
Answer: 3 600
Explanation:
The pattern increases by 50 each time:
- 3 450 + 50 = 3 500
- 3 500 + 50 = 3 550
- 3 550 + 50 = 3 600
- 3 600 + 50 = 3 650
Marking: 2 marks for correct answer. 1 mark if working shows +50 pattern but answer is wrong.
9. Arrange the following numbers in order, starting from the greatest. [2]
4 092, 4 209, 4 029, 4 290
Answer: 4 290, 4 209, 4 092, 4 029
Explanation:
Compare thousands (all 4), then hundreds:
- 4 290 and 4 209 have 2 hundreds → larger than 4 092 and 4 029 (0 hundreds)
- Between 4 290 and 4 209: compare tens → 9 > 0, so 4 290 > 4 209
- Between 4 092 and 4 029: compare tens → 9 > 2, so 4 092 > 4 029
Marking: 2 marks for fully correct order. 1 mark for partially correct (e.g., first two correct).
10. Form the smallest 4-digit even number using the digits 3, 0, 7, 5. [2]
Answer: 3 057 ❌ Correction: 3 570
Wait, let me re-check:
Smallest 4-digit number: thousands digit must be smallest non-zero digit → 3
Remaining digits: 0, 5, 7
For even number: ones digit must be even → only 0 is even
So ones = 0
Remaining for hundreds and tens: 5, 7 → smallest arrangement: 5 hundreds, 7 tens
Answer: 3 570
Explanation:
- Thousands: smallest non-zero digit = 3
- Ones: must be even → only 0 works
- Hundreds and tens: arrange remaining digits (5, 7) in ascending order → 5, 7
- Result: 3 570
Common mistake: 3 057 (not even), 3 075 (not even), 5 037 (not smallest thousands).
Marking: 2 marks for 3 570. 1 mark for correct thousands digit (3) and even ones digit (0) but wrong middle digits.
11. Find the sum of 2 468 and 3 527. [2]
Answer: 5 995
Working:
2 4 6 8
+ 3 5 2 7
---------
5 9 9 5
Step-by-step:
- Ones: 8 + 7 = 15 → write 5, carry 1
- Tens: 6 + 2 + 1 = 9
- Hundreds: 4 + 5 = 9
- Thousands: 2 + 3 = 5
Marking: 2 marks for correct answer. 1 mark for correct method with one calculation error.
12. Find the difference between 8 000 and 3 476. [2]
Answer: 4 524
Working:
8 0 0 0
- 3 4 7 6
---------
4 5 2 4
Step-by-step (with regrouping):
- Ones: 0 - 6 → regroup from tens, but tens is 0 → regroup from hundreds, but hundreds is 0 → regroup from thousands
- 8 000 = 7 thousands, 9 hundreds, 9 tens, 10 ones
- Ones: 10 - 6 = 4
- Tens: 9 - 7 = 2
- Hundreds: 9 - 4 = 5
- Thousands: 7 - 3 = 4
Marking: 2 marks for correct answer. 1 mark for correct regrouping method with one calculation error.
13. A number is 500 less than 6 300. What is the number? [2]
Answer: 5 800
Working:
6 300 - 500 = 5 800
Explanation:
Subtracting 500 reduces the hundreds digit by 5:
- 6 300 has 3 hundreds
- 3 hundreds - 5 hundreds → need to regroup 1 thousand = 10 hundreds
- 13 hundreds - 5 hundreds = 8 hundreds
- Thousands: 5 (after regrouping)
- Result: 5 800
Marking: 2 marks for correct answer. 1 mark for correct method (subtraction) with calculation error.
14. Complete the number pattern. [2]
7 200, 7 100, 7 000, _______, 6 800
Answer: 6 900
Explanation:
The pattern decreases by 100 each time:
- 7 200 - 100 = 7 100
- 7 100 - 100 = 7 000
- 7 000 - 100 = 6 900
- 6 900 - 100 = 6 800
Marking: 2 marks for correct answer. 1 mark for identifying -100 pattern but wrong answer.
15. In the number 5 083, the digit 8 stands for _______ tens. [2]
Answer: 8
Explanation:
In 5 083:
- 5 is in thousands place
- 0 is in hundreds place
- 8 is in tens place → stands for 8 tens (value = 80)
- 3 is in ones place
The question asks "how many tens", not the value. So the answer is the digit itself: 8.
Common mistake: Writing 80 (the value) instead of 8 (the number of tens).
Marking: 2 marks for "8". 0 marks for "80" (misread question).
Section C: Problem Sums (20 marks)
16. There are 3 456 visitors at the Singapore Zoo on Saturday. On Sunday, there are 1 234 more visitors than on Saturday. [4]
(a) How many visitors are there on Sunday?
(b) How many visitors are there on both days altogether?
Working:
(a) Sunday visitors = Saturday visitors + 1 234
= 3 456 + 1 234
= 4 690
(b) Total visitors = Saturday + Sunday
= 3 456 + 4 690
= 8 146
Answer: (a) 4 690 visitors
(b) 8 146 visitors
Marking:
- (a) 2 marks: 1 mark for correct operation (+), 1 mark for correct answer
- (b) 2 marks: 1 mark for correct operation (+), 1 mark for correct answer
- If (a) is wrong but (b) correctly uses (a)'s answer, award method mark for (b)
17. A factory produced 5 600 toys in January. It produced 800 fewer toys in February than in January. [4]
(a) How many toys were produced in February?
(b) How many toys were produced in both months altogether?
Working:
(a) February toys = January toys - 800
= 5 600 - 800
= 4 800
(b) Total toys = January + February
= 5 600 + 4 800
= 10 400
Answer: (a) 4 800 toys
(b) 10 400 toys
Marking:
- (a) 2 marks: 1 mark for correct operation (-), 1 mark for correct answer
- (b) 2 marks: 1 mark for correct operation (+), 1 mark for correct answer
- Follow-through from (a) allowed for (b)
18. Muthu has 2 450 stickers. He has 350 more stickers than Ali. [4]
(a) How many stickers does Ali have?
(b) How many stickers do they have altogether?
Working:
(a) Ali's stickers = Muthu's stickers - 350
= 2 450 - 350
= 2 100
(b) Total stickers = Muthu + Ali
= 2 450 + 2 100
= 4 550
Answer: (a) 2 100 stickers
(b) 4 550 stickers
Marking:
- (a) 2 marks: 1 mark for correct operation (-), 1 mark for correct answer
- (b) 2 marks: 1 mark for correct operation (+), 1 mark for correct answer
- Key concept: "Muthu has 350 more than Ali" means Ali has 350 fewer than Muthu (subtraction)
19. A library has 4 320 English books and 2 185 Chinese books. [4]
(a) How many more English books than Chinese books are there?
(b) If 500 English books are borrowed, how many English books are left?
Working:
(a) Difference = English books - Chinese books
= 4 320 - 2 185
= 2 135
(b) English books left = 4 320 - 500
= 3 820
Answer: (a) 2 135 books
(b) 3 820 books
Marking:
- (a) 2 marks: 1 mark for correct operation (-), 1 mark for correct answer (with regrouping)
- (b) 2 marks: 1 mark for correct operation (-), 1 mark for correct answer
20. The mass of a box of apples is 3 250 g. The mass of a box of oranges is 1 475 g. [4]
(a) What is the total mass of the two boxes?
(b) What is the difference in mass between the two boxes?
Working:
(a) Total mass = 3 250 + 1 475
= 4 725 g
(b) Difference = 3 250 - 1 475
= 1 775 g
Answer: (a) 4 725 g
(b) 1 775 g
Marking:
- (a) 2 marks: 1 mark for correct operation (+), 1 mark for correct answer
- (b) 2 marks: 1 mark for correct operation (-), 1 mark for correct answer (with regrouping)
Summary of Marks
| Section | Questions | Marks per Question | Total Marks |
|---|---|---|---|
| A (MCQ) | 1-5 | 2 | 10 |
| B (Short Answer) | 6-15 | 2 | 20 |
| C (Problem Sums) | 16-20 | 4 | 20 |
| Total | 20 | 50 |
General Marking Notes
-
Units: For Questions 19-20, units (books, g) must be included in final answer for full marks. Deduct ½ mark per missing unit (if marking strictly).
-
Working: All problem sums (Section C) require working shown. Deduct 1 mark per part if no working shown but answer is correct.
-
Follow-through: In multi-part questions, if an earlier part is incorrect but subsequent parts correctly use that incorrect value, award method marks for subsequent parts.
-
Number notation: Accept both "4 690" and "4690" (with or without space).
-
Words vs numerals: In Question 6, accept "Seven thousand forty-five" (without "and") as correct.
End of Answer Key