Primary 4 Mathematics Semestral Assessment 2 (End of Year) Paper 5

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TuitionGoWhere Exam Practice (AI) - Mathematics Primary 4

School: TuitionGoWhere Exam Practice (AI)
Subject: Mathematics
Level: Primary 4
Paper: SA2 Practice Paper (Version 5 of 5)
Duration: 50 minutes
Total Marks: 40
Name: ________________________
Class: ________
Date: ________

Instructions:

1. This paper contains 20 questions on Whole Numbers.
2. Write your answers in the spaces provided.
3. Show your working clearly where required.
4. Use the approximation symbol (≈) where rounding is asked.

Section A: Place Value and Rounding (Questions 1–8) [8 marks]

1. In the number 84,217, which digit is in the thousands place? [1]

2. What does the digit 6 stand for in 56,309? [1]

3. Write "sixty-two thousand and forty-eight" in figures. [1]

4. Round 37,842 to the nearest hundred. [1]

5. Round 91,275 to the nearest thousand. [1]

6. 45,600 is rounded to the nearest hundred. Which of these could be the original number?
   A) 45,549
   B) 45,651
   C) 45,582
   D) 45,500 [1]

7. What is the value of the digit 3 in 73,904? [1]

8. Round 29,999 to the nearest ten. [1]

Section B: Operations with Whole Numbers (Questions 9–14) [12 marks]

9. Calculate: 3,472 + 5,189. [1]

10. Calculate: 8,204 − 3,917. [1]

11. Multiply 2,136 by 4. Show your working. [2]

12. Divide 7,392 by 3. Show your working. [2]

13. A shop sold 1,245 tickets on Saturday and 1,758 tickets on Sunday. How many tickets were sold in total? [2]

14. Mr Tan bought 6 boxes of pencils. Each box has 288 pencils. How many pencils did he buy? [2]

15. A school has 4,680 pupils. They are divided equally into 6 groups. How many pupils in each group? [2]

Section C: Factors, Multiples and Problem Solving (Questions 16–20) [20 marks]

16. List all the factors of 18. [2]

17. Which of the following is a common factor of 24 and 36?
    A) 5
    B) 6
    C) 8
    D) 9 [1]

18. State the first three multiples of 7 that are greater than 20. [1]

19. Mrs Lim wants to pack stickers into bags of 4, 6, or 8 without any leftover. What is the least number of stickers she can have? Show your working. [3]

20. A bus leaves the terminal every 15 minutes. Another bus leaves every 20 minutes. If both leave at 8:00 a.m., at what time will they next leave together? Show your working. [3]

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TuitionGoWhere Exam Practice (AI) - Mathematics Primary 4 Answer Key

Paper: SA2 Practice Paper (Version 5 of 5)
Total Marks: 40

Section A: Place Value and Rounding

1. Answer: 4
   Teaching note: Place values from right: ones (7), tens (1), hundreds (2), thousands (4), ten thousands (8). The thousands digit is 4.

2. Answer: 6,000
   Teaching note: Digit 6 is in the thousands place, so it stands for 6 × 1,000 = 6,000.

3. Answer: 62,048
   Teaching note: Sixty-two thousand = 62,000; forty-eight = 48. Combined: 62,048.

4. Answer: 37,800
   Teaching note: Rounding to nearest hundred: look at tens digit (4). Since 4 < 5, keep hundred digit same → 37,800.

5. Answer: 91,000
   Teaching note: Rounding to nearest thousand: look at hundreds digit (2). Since 2 < 5, round down → 91,000.

6. Answer: C) 45,582
   Teaching note: Numbers rounding to 45,600 to nearest hundred must be from 45,550 to 45,649. Only 45,582 fits.

7. Answer: 3,000
   Teaching note: Digit 3 is in thousands place → 3 × 1,000 = 3,000.

8. Answer: 30,000
   Teaching note: Round to nearest ten: ones digit is 9, so round up the tens → 29,999 ≈ 30,000.

Section B: Operations

9. Answer: 8,661
   Working: 3,472 + 5,189 = 8,661.

10. Answer: 4,287
    Working: 8,204 − 3,917 = 4,287.

11. Answer: 8,544
    Working:
    2,136 × 4:
    6 × 4 = 24 (write 4, carry 2)
    3 × 4 = 12 + 2 = 14 (write 4, carry 1)
    1 × 4 = 4 + 1 = 5
    2 × 4 = 8
    Result: 8,544.

12. Answer: 2,464
    Working:
    7,392 ÷ 3:
    7 ÷ 3 = 2 rem 1
    13 ÷ 3 = 4 rem 1
    19 ÷ 3 = 6 rem 1
    12 ÷ 3 = 4
    Result: 2,464.

13. Answer: 3,003 tickets
    Working: 1,245 + 1,758 = 3,003.

14. Answer: 1,728 pencils
    Working: 288 × 6 = 1,728.

15. Answer: 780 pupils
    Working: 4,680 ÷ 6 = 780.

Section C: Factors, Multiples and Problem Solving

16. Answer: 1, 2, 3, 6, 9, 18
    Teaching note: Factors are numbers that divide 18 exactly: 1×18, 2×9, 3×6.

17. Answer: B) 6
    Teaching note: Factors of 24: 1,2,3,4,6,8,12,24. Factors of 36: 1,2,3,4,6,9,12,18,36. Common: 1,2,3,4,6,12. So 6 is correct.

18. Answer: 21, 28, 35
    Teaching note: Multiples of 7: 7,14,21,28,35… Greater than 20: 21,28,35.

19. Answer: 24 stickers
    Working (LCM):
    Multiples of 4: 4,8,12,16,20,24…
    Multiples of 6: 6,12,18,24…
    Multiples of 8: 8,16,24…
    Least common multiple = 24.
    [3 marks: 1 for correct method, 2 for correct LCM and answer]

20. Answer: 8:00 a.m. + 60 min = 9:00 a.m.
    Working (LCM of time):
    Bus A: 15,30,45,60 min
    Bus B: 20,40,60 min
    LCM = 60 minutes = 1 hour.
    Next together at 9:00 a.m.
    [3 marks: 1 for listing multiples, 1 for LCM, 1 for time]