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Primary 4 Mathematics Semestral Assessment 2 (End of Year) Paper 1

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Questions

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TuitionGoWhere Practice Paper - Mathematics Primary 4

TuitionGoWhere Exam Practice (AI)

Subject: Mathematics
Level: Primary 4
Paper: SA2 (Semestral Assessment 2)
Duration: 1 hour 30 minutes
Total Marks: 80

Name: ________________________
Class: Primary 4 _______
Date: ________________________

INSTRUCTIONS TO CANDIDATES

  1. Do not turn over this page until you are told to do so.
  2. Follow all instructions carefully.
  3. Answer all questions.
  4. Write your answers in this booklet.
  5. The number of marks is given in brackets [ ] at the end of each question or part question.
  6. The total number of marks for this paper is 80.
  7. You may use a calculator for this paper.

SECTION A: Multiple-Choice Questions (20 marks)

Questions 1 to 10 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 64,827, which digit is in the thousands place? [2]

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

2. What does the digit 5 stand for in 35,914? [2]

(1) 5
(2) 50
(3) 500
(4) 5000

3. Round 47,382 to the nearest hundred. [2]

(1) 47,300
(2) 47,400
(3) 47,000
(4) 48,000

4. Which of the following numbers when rounded to the nearest thousand gives 52,000? [2]

(1) 51,499
(2) 51,500
(3) 52,500
(4) 52,501

5. Find the value of 38,426 + 15,793. [2]

(1) 53,219
(2) 54,119
(3) 54,219
(4) 53,119

6. Find the value of 82,500 − 27,846. [2]

(1) 54,654
(2) 54,754
(3) 55,654
(4) 55,754

7. 425 × 36 = ________ [2]

(1) 15,300
(2) 15,200
(3) 14,300
(4) 14,200

8. 7,200 ÷ 8 = ________ [2]

(1) 90
(2) 900
(3) 9,000
(4) 90,000

9. A factory produced 4,582 toys in January. It produced 3,749 more toys in February than in January. How many toys did the factory produce in February? [2]

(1) 8,331
(2) 8,231
(3) 7,331
(4) 7,231

10. Mrs Lim bought 6 boxes of apples. There were 24 apples in each box. She gave away 35 apples. How many apples had she left? [2]

(1) 109
(2) 119
(3) 129
(4) 139

SECTION B: Short-Answer Questions (25 marks)

Questions 11 to 20 carry 1 to 3 marks each. Write your answers in the spaces provided. Show your working clearly.

11. Write 58,043 in words. [1]

12. What is the value of the digit 7 in 27,589? [1]

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

34,502 ; 34,052 ; 35,402 ; 34,520

14. Complete the number pattern. [2]

28,500 ; 29,000 ; 29,500 ; ________ ; ________

15. Round 63,947 to the nearest ten. [1]

16. A number rounded to the nearest hundred is 45,600. What is the greatest possible value of this number? [2]

17. Find the value of 56,304 − 18,729. [2]

18. Find the value of 314 × 27. [2]

19. 6,432 ÷ 6 = ________ [1]

20. Mr Tan had 8,500 stickers. He packed them equally into 5 boxes. How many stickers were there in each box? [2]

21. A bookshop had 12,450 books. 3,876 books were sold on Monday and 2,549 books were sold on Tuesday. How many books were left? [3]

22. There are 48 students in a class. Each student has 15 pencils. How many pencils do they have altogether? [2]

23. A farmer harvested 5,600 kg of rice. He packed the rice into bags of 8 kg each. How many bags of rice did he get? [2]

24. The sum of two numbers is 48,300. The smaller number is 18,750. What is the larger number? [2]

25. A machine can print 350 pages in 1 minute. How many pages can it print in 12 minutes? [2]

SECTION C: Long-Answer / Word Problems (35 marks)

Questions 26 to 30 carry 3 to 5 marks each. Show your working clearly and write your final answer in the space provided.

26. A stadium has 45,680 seats. 28,495 seats are occupied by adults and the rest are occupied by children. [3]

(a) How many seats are occupied by children? (b) How many more seats are occupied by adults than children?

Answer: (a) _______________ (b) _______________

27. Mrs Goh bought 8 boxes of oranges. There were 36 oranges in each box. She threw away 27 rotten oranges and packed the remaining oranges equally into 9 bags. [4]

(a) How many oranges did Mrs Goh buy altogether? (b) How many oranges were there in each bag?

Answer: (a) _______________ (b) _______________

28. A library has 34,560 books. 12,345 are English books, 9,876 are Chinese books and the rest are Malay books. [4]

(a) How many Malay books are there? (b) How many more English books than Chinese books are there?

Answer: (a) _______________ (b) _______________

29. Mr Lim had some money. He spent 2,450onatelevisionand2,450 on a television and 1,890 on a refrigerator. He had $3,760 left. [4]

(a) How much did he spend altogether? (b) How much money did he have at first?

Answer: (a) _______________ (b) _______________

30. A factory produced 2,450 toys each day from Monday to Friday. On Saturday, it produced 1,800 toys. On Sunday, it produced 1,200 toys. [5]

(a) How many toys did the factory produce from Monday to Friday? (b) How many toys did the factory produce in the whole week? (c) If each toy is sold for $8, how much money would the factory collect if all the toys produced in the week were sold?

Answer: (a) _______________ (b) _______________ (c) _______________

END OF PAPER

Answers

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TuitionGoWhere Practice Paper - Mathematics Primary 4 (Answer Key)

Subject: Mathematics
Level: Primary 4
Paper: SA2
Total Marks: 80

SECTION A: Multiple-Choice Questions (20 marks)

1. Answer: (2) 4 [2]

Explanation: In the number 64,827, the digits from left to right are: 6 (ten thousands), 4 (thousands), 8 (hundreds), 2 (tens), 7 (ones). The digit in the thousands place is 4.

2. Answer: (4) 5000 [2]

Explanation: In 35,914, the digit 5 is in the thousands place. Its value is 5 × 1,000 = 5,000.

3. Answer: (2) 47,400 [2]

Explanation: To round 47,382 to the nearest hundred, look at the tens digit (8). Since 8 ≥ 5, round up the hundreds digit from 3 to 4. The number becomes 47,400.

4. Answer: (2) 51,500 [2]

Explanation: When rounding to the nearest thousand, numbers from 51,500 to 52,499 round to 52,000. The smallest number that rounds to 52,000 is 51,500. Option (1) 51,499 rounds to 51,000. Options (3) and (4) round to 53,000.

5. Answer: (3) 54,219 [2]

Working:

  38,426
+ 15,793
--------
  54,219

Add column by column from right to left with regrouping.

6. Answer: (1) 54,654 [2]

Working:

  82,500
- 27,846
--------
  54,654

Subtract column by column from right to left with regrouping.

7. Answer: (1) 15,300 [2]

Working: 425 × 36 = 425 × (30 + 6) = 425 × 30 + 425 × 6 = 12,750 + 2,550 = 15,300

8. Answer: (2) 900 [2]

Explanation: 7,200 ÷ 8 = (72 × 100) ÷ 8 = (72 ÷ 8) × 100 = 9 × 100 = 900.

9. Answer: (1) 8,331 [2]

Working: February = January + 3,749 = 4,582 + 3,749 = 8,331.

10. Answer: (1) 109 [2]

Working: Total apples = 6 × 24 = 144. Apples left = 144 − 35 = 109.

SECTION B: Short-Answer Questions (25 marks)

11. Answer: Fifty-eight thousand and forty-three [1]

Explanation: 58,043 = 58,000 + 43. Write as "Fifty-eight thousand and forty-three". Note: "and" is used before the last two digits when there are no hundreds.

12. Answer: 7,000 [1]

Explanation: In 27,589, the digit 7 is in the thousands place. Its value is 7 × 1,000 = 7,000.

13. Answer: 34,052 ; 34,502 ; 34,520 ; 35,402 [2]

Explanation: Compare digit by digit from the left (ten thousands). All have 3 ten thousands. Compare thousands: all have 4 thousands except 35,402 (5 thousands). For the three numbers with 34,xxx, compare hundreds: 34,052 (0 hundreds), 34,502 (5 hundreds), 34,520 (5 hundreds). For 34,502 and 34,520, compare tens: 0 tens vs 2 tens. Order: 34,052 < 34,502 < 34,520 < 35,402.

14. Answer: 30,000 ; 30,500 [2]

Explanation: The pattern increases by 500 each time. 29,500 + 500 = 30,000. 30,000 + 500 = 30,500.

15. Answer: 63,950 [1]

Explanation: To round to the nearest ten, look at the ones digit (7). Since 7 ≥ 5, round up the tens digit from 4 to 5. 63,947 → 63,950.

16. Answer: 45,649 [2]

Explanation: When a number rounds to 45,600 to the nearest hundred, the original number could be from 45,550 to 45,649. The greatest possible value is 45,649.

17. Answer: 37,575 [2]

Working:

  56,304
- 18,729
--------
  37,575

Subtract with regrouping.

18. Answer: 8,478 [2]

Working: 314 × 27 = 314 × (20 + 7) = 314 × 20 + 314 × 7 = 6,280 + 2,198 = 8,478.

19. Answer: 1,072 [1]

Working: 6,432 ÷ 6 = (6,000 ÷ 6) + (400 ÷ 6) + (30 ÷ 6) + (2 ÷ 6) = 1,000 + 66 remainder 4... Better: 6,432 ÷ 6 = 1,072 exactly (6 × 1,072 = 6,432).

20. Answer: 1,700 [2]

Working: 8,500 ÷ 5 = 1,700 stickers per box.

21. Answer: 6,025 [3]

Working: Method 1: Total sold = 3,876 + 2,549 = 6,425. Books left = 12,450 − 6,425 = 6,025. Method 2: 12,450 − 3,876 = 8,574. 8,574 − 2,549 = 6,025.

22. Answer: 720 [2]

Working: 48 × 15 = 48 × (10 + 5) = 480 + 240 = 720 pencils.

23. Answer: 700 [2]

Working: 5,600 ÷ 8 = 700 bags.

24. Answer: 29,550 [2]

Working: Larger number = Sum − Smaller number = 48,300 − 18,750 = 29,550.

25. Answer: 4,200 [2]

Working: 350 × 12 = 350 × (10 + 2) = 3,500 + 700 = 4,200 pages.

SECTION C: Long-Answer / Word Problems (35 marks)

26. [3 marks]

(a) Answer: 17,185 [1] Working: Children seats = Total − Adult seats = 45,680 − 28,495 = 17,185.

(b) Answer: 11,310 [2] Working: Difference = Adult seats − Children seats = 28,495 − 17,185 = 11,310. Alternative: Difference = 2 × Adult seats − Total = 2 × 28,495 − 45,680 = 56,990 − 45,680 = 11,310.

27. [4 marks]

(a) Answer: 288 [1] Working: Total oranges = 8 × 36 = 288.

(b) Answer: 29 [3] Working: Good oranges = 288 − 27 = 261. Oranges per bag = 261 ÷ 9 = 29.

28. [4 marks]

(a) Answer: 12,339 [2] Working: English + Chinese = 12,345 + 9,876 = 22,221. Malay books = 34,560 − 22,221 = 12,339.

(b) Answer: 2,469 [2] Working: Difference = 12,345 − 9,876 = 2,469.

29. [4 marks]

**(a) Answer: 4,340∗∗[1]∗∗Working:∗∗Totalspent=4,340** [1] **Working:** Total spent = 2,450 + 1,890=1,890 = 4,340.

**(b) Answer: 8,100∗∗[3]∗∗Working:∗∗Moneyatfirst=Totalspent+Moneyleft=8,100** [3] **Working:** Money at first = Total spent + Money left = 4,340 + 3,760=3,760 = 8,100.

30. [5 marks]

(a) Answer: 12,250 [1] Working: Monday to Friday = 5 days. Toys = 2,450 × 5 = 12,250.

(b) Answer: 15,250 [2] Working: Saturday + Sunday = 1,800 + 1,200 = 3,000. Total week = 12,250 + 3,000 = 15,250.

**(c) Answer: 122,000∗∗[2]∗∗Working:∗∗Totalmoney=15,250×122,000** [2] **Working:** Total money = 15,250 × 8 = $122,000. (15,250 × 8 = (15,000 × 8) + (250 × 8) = 120,000 + 2,000 = 122,000)

Total Marks: 80