Primary 4 Mathematics Semestral Assessment 1 (Mid-Year) Paper 4

TUITIONGOWHERE PRIMARY SCHOOL (AI)

SA1 EXAMINATION 2026 (VERSION 4)

PRIMARY 4 MATHEMATICS

Duration: 1 hour 30 minutes Total Marks: 100

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INSTRUCTIONS TO STUDENTS

1. Do not turn over this page until you are told to do so.
2. Answer all questions.
3. Show your working clearly in the space provided.
4. You are not allowed to use a calculator.

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Name: _________________ ( ) Class: Primary 4 ( ) Date: _________________

Section	Marks
A (MCQ)	/20
B (Short Answer)	/40
C (Word Problems)	/40
Total	/100

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Section A: Multiple Choice Questions (20 marks)

For each question, choose the correct answer.

1. In 49,657, which digit is in the ten thousands place?

(A) 9 (B) 4 (C) 6 (D) 5

( ) [1 mark]

2. What is the greatest common factor of 24 and 36?

(A) 6 (B) 8 (C) 12 (D) 4

( ) [1 mark]

3. Which improper fraction equals 4 3/8?

(A) 32/8 (B) 35/8 (C) 34/8 (D) 33/8

( ) [1 mark]

4. What is 0.08 as a fraction in simplest form?

(A) 8/10 (B) 8/100 (C) 2/25 (D) 4/50

( ) [1 mark]

5. Find the area of a square with side 11 cm.

(A) 44 cm² (B) 121 cm² (C) 22 cm² (D) 111 cm²

( ) [1 mark]

6. Round 84,567 to the nearest hundred.

(A) 84,500 (B) 84,600 (C) 85,000 (D) 84,000

( ) [1 mark]

7. What is 7,848 ÷ 9?

(A) 871 (B) 872 (C) 873 (D) 874

( ) [1 mark]

8. Which fraction is equivalent to 5/6?

(A) 10/18 (B) 15/18 (C) 20/24 (D) 25/36

( ) [1 mark]

9. Arrange in descending order: 0.67, 0.607, 0.76

(A) 0.76, 0.67, 0.607 (B) 0.67, 0.76, 0.607 (C) 0.607, 0.67, 0.76 (D) 0.76, 0.607, 0.67

( ) [1 mark]

10. A rectangle has perimeter 56 cm and length 18 cm. What is its width?

(A) 10 cm (B) 20 cm (C) 38 cm (D) 9 cm

( ) [1 mark]

11. What is the LCM of 6 and 9?

(A) 18 (B) 36 (C) 54 (D) 15

( ) [1 mark]

12. How many eighths are there in 3 1/2?

(A) 24 (B) 25 (C) 28 (D) 27

( ) [1 mark]

13. What is 4,089 × 6?

(A) 24,534 (B) 24,634 (C) 24,524 (D) 24,434

( ) [1 mark]

14. Convert 31/7 to a mixed number.

(A) 4 2/7 (B) 4 3/7 (C) 4 4/7 (D) 4 5/7

( ) [1 mark]

15. How many factors does 48 have?

(A) 8 (B) 9 (C) 10 (D) 12

( ) [1 mark]

16. What is 6.049 rounded to the nearest hundredth?

(A) 6.04 (B) 6.05 (C) 6.0 (D) 6.1

( ) [1 mark]

17. 9,135 ÷ 5 = ?

(A) 1,826 (B) 1,827 (C) 1,828 (D) 1,825

( ) [1 mark]

18. Which is smaller: 7/9 or 5/6?

(A) 7/9 (B) 5/6 (C) They are equal (D) Cannot be determined

( ) [1 mark]

19. What number is 10,000 less than 75,342?

(A) 65,342 (B) 74,342 (C) 75,242 (D) 64,342

( ) [1 mark]

20. A rectangle has area 96 cm² and length 12 cm. What is its width?

(A) 6 cm (B) 8 cm (C) 10 cm (D) 84 cm

( ) [1 mark]

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Section B: Short Answer Questions (40 marks)

21. Calculate 67,845 - 29,678.

Show your working.

_______________________________________________ [3 marks]

22. Find 7/15 + 4/15.

Show your working.

_______________________________________________ [3 marks]

23. Calculate 15.6 + 8.78.

Show your working.

_______________________________________________ [3 marks]

24. A square has perimeter 68 cm. Find its side length.

Show your working.

_______________________________________________ [3 marks]

25. Convert 41/9 to a mixed number.

Show your working.

_______________________________________________ [3 marks]

26. Calculate 8,567 × 7.

Show your working.

_______________________________________________ [4 marks]

27. Calculate 6,552 ÷ 8.

Show your working.

_______________________________________________ [4 marks]

28. Find 1/3 + 2/9.

Show your working.

_______________________________________________ [4 marks]

29. Calculate 20.4 - 13.65.

Show your working.

_______________________________________________ [3 marks]

30. Find the perimeter of a rectangle with length 23 cm and width 14 cm.

Show your working.

_______________________________________________ [3 marks]

31. List all factors of 54.

_______________________________________________ [3 marks]

32. Convert 7 5/8 to an improper fraction.

Show your working.

_______________________________________________ [4 marks]

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Section C: Word Problems (40 marks)

33. A warehouse has 23,456 items. They receive 8,765 more items and ship out 12,340 items. How many items are left in the warehouse?

Show your working clearly.

_______________________________________________ [5 marks]

34. A printer prints 1,875 pages per hour. How many pages can it print in 8 hours?

Show your working clearly.

_______________________________________________ [5 marks]

35. A school has 7,344 pencils to distribute equally among 9 classes. How many pencils does each class get?

Show your working clearly.

_______________________________________________ [5 marks]

36. Mei Ling ate 2/7 of a cake. Her mother ate 3/7 of the same cake. What fraction of the cake did they eat altogether?

Show your working clearly.

_______________________________________________ [5 marks]

37. Mr Lim bought 6.25 kg of beef and 3.48 kg of lamb. What is the total mass of meat he bought?

Show your working clearly.

_______________________________________________ [5 marks]

38. A rectangular field has length 45 m and width 28 m. A rectangular shed inside the field has length 12 m and width 9 m. What is the area of the field not covered by the shed?

Show your working clearly.

_______________________________________________ [5 marks]

39. Ravi's salary is $2,450 per month. He saves$685 each month. How much does he spend in 6 months?

Show your working clearly.

_______________________________________________ [5 marks]

40. A bakery made 3,678 cupcakes on Monday. On Tuesday, they made 1,456 more cupcakes than Monday. On Wednesday, they made 2,345 fewer cupcakes than Tuesday. How many cupcakes did they make on Wednesday?

Show your working clearly.

_______________________________________________ [5 marks]

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~ End of Paper ~

TUITIONGOWHERE PRIMARY SCHOOL (AI)

SA1 EXAMINATION 2026 (VERSION 4) - ANSWER KEY

PRIMARY 4 MATHEMATICS

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Section A: Multiple Choice (20 marks)

1. Answer: (B) 4 In 49,657, the digit 4 is in the ten thousands place.

2. Answer: (C) 12 Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24 Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36 GCF = 12

3. Answer: (B) 35/8 4 3/8 = (4 × 8 + 3)/8 = (32 + 3)/8 = 35/8

4. Answer: (C) 2/25 0.08 = 8/100 = 2/25 (simplified)

5. Answer: (B) 121 cm² Area = side × side = 11 × 11 = 121 cm²

6. Answer: (B) 84,600 84,567 → Look at tens (6), round up to 84,600.

7. Answer: (B) 872 7,848 ÷ 9 = 872

8. Answer: (B) 15/18 5/6 = 15/18 (multiply by 3/3)

9. Answer: (A) 0.76, 0.67, 0.607 0.76 > 0.67 > 0.607

10. Answer: (A) 10 cm Perimeter = 2(length + width) 56 = 2(18 + width) 28 = 18 + width Width = 10 cm

11. Answer: (A) 18 LCM of 6 and 9 is 18.

12. Answer: (C) 28 3 1/2 = 7/2 = 28/8, so 28 eighths.

13. Answer: (A) 24,534 4,089 × 6 = 24,534

14. Answer: (B) 4 3/7 31/7 = 31 ÷ 7 = 4 remainder 3 = 4 3/7

15. Answer: (C) 10 Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 (10 factors)

16. Answer: (B) 6.05 6.049 rounded to nearest hundredth: Look at thousandths (9), round up to 6.05.

17. Answer: (B) 1,827 9,135 ÷ 5 = 1,827

18. Answer: (A) 7/9 7/9 = 14/18, 5/6 = 15/18. Since 14/18 < 15/18, 7/9 is smaller.

19. Answer: (A) 65,342 75,342 - 10,000 = 65,342

20. Answer: (B) 8 cm Area = length × width 96 = 12 × width Width = 8 cm

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Section B: Short Answer (40 marks)

21. Answer: 38,167

  67,845
- 29,678
--------
  38,167

22. Answer: 11/15 7/15 + 4/15 = 11/15

23. Answer: 24.38

  15.60
+  8.78
-------
  24.38

24. Answer: 17 cm Perimeter = 4 × side 68 = 4 × side Side = 17 cm

25. Answer: 4 5/9 41/9 = 41 ÷ 9 = 4 remainder 5 = 4 5/9

26. Answer: 59,969

  8,567
×     7
-------
 59,969

27. Answer: 819 6,552 ÷ 8 = 819

28. Answer: 5/9 1/3 = 3/9 3/9 + 2/9 = 5/9

29. Answer: 6.75

 20.40
-13.65
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  6.75

30. Answer: 74 cm Perimeter = 2 × (length + width) = 2 × (23 + 14) = 2 × 37 = 74 cm

31. Answer: 1, 2, 3, 6, 9, 18, 27, 54 54 = 1 × 54 = 2 × 27 = 3 × 18 = 6 × 9

32. Answer: 61/8 7 5/8 = (7 × 8 + 5)/8 = (56 + 5)/8 = 61/8

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Section C: Word Problems (40 marks)

33. Answer: 19,881 items

Working:

• Started with: 23,456 items
• Received: +8,765 items
• Shipped: -12,340 items
• Items left = 23,456 + 8,765 - 12,340 = 19,881 items

34. Answer: 15,000 pages

Working: Pages in 8 hours = 1,875 × 8 = 15,000 pages

35. Answer: 816 pencils

Working: Pencils per class = 7,344 ÷ 9 = 816 pencils

36. Answer: 5/7

Working: Fraction eaten = 2/7 + 3/7 = 5/7

37. Answer: 9.73 kg

Working: Total mass = 6.25 + 3.48 = 9.73 kg

38. Answer: 1,152 m²

Working:

• Area of field = 45 × 28 = 1,260 m²
• Area of shed = 12 × 9 = 108 m²
• Area not covered = 1,260 - 108 = 1,152 m²

39. Answer: $10,590

Working:

• Spending per month = $2,450 -$685 = $1,765
• Spending in 6 months = $1,765 × 6 =$10,590

40. Answer: 2,789 cupcakes

Working:

• Monday: 3,678 cupcakes
• Tuesday: 3,678 + 1,456 = 5,134 cupcakes
• Wednesday: 5,134 - 2,345 = 2,789 cupcakes

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~ End of Answer Key ~