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Primary 5 Mathematics Practice Paper 5

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TuitionGoWhere Practice Paper - Mathematics Primary 5

TuitionGoWhere Practice Paper (AI)

Subject: Mathematics
Level: Primary 5
Paper: Practice Paper — Whole Numbers (Version 5 of 5)
Duration: 50 minutes
Total Marks: 40

Name: ___________________________
Class: ___________________________
Date: ___________________________

Instructions

Answer all questions.
Show your working clearly in the space provided.
Write your answers in the blanks where indicated.
Do not use a calculator.
The number of marks for each question is shown in brackets [ ].

Section A: Short Answer Questions (20 marks)

Questions 1–10. Each question carries 2 marks.

1. Write the following number in numerals.

Three million, four hundred and fifty-six thousand, seven hundred and eight.

Answer: ___________________________

2. What is the value of the digit 7 in the number 4,735,209?

Answer: ___________________________

3. Arrange the following numbers in order, starting with the smallest.

5,203,618 5,023,816 5,320,168 5,032,681

Answer: _________, _________, _________, _________

4. Round 6,487,352 to the nearest hundred thousand.

Answer: ___________________________

5. Fill in the missing number.

8,500,000 = 8,000,000 + ___________ + 0 + 0 + 0 + 0 + 0

Answer: ___________________________

6. Find the product.

250 × 600 = ___________

Answer: ___________________________

7. Find the quotient.

72,000 ÷ 800 = ___________

Answer: ___________________________

8. Evaluate the following expression using order of operations.

48 + 36 ÷ 6 × 5 − 7

Answer: ___________________________

9. Evaluate the following expression.

(25 + 15) × (8 − 3)

Answer: ___________________________

10. A factory produced 4,800 toys in one day. The toys were packed equally into 16 boxes. How many toys were in each box?

Answer: ___________________________

Section B: Structured Questions (12 marks)

Questions 11–14. Show your working clearly.

11. A school library had 125,680 books. The school donated 38,450 books to a community centre and then received a donation of 15,720 new books.

(a) How many books were left after the donation to the community centre? [2]

Answer: ___________________________

(b) How many books did the library have after receiving the new donation? [2]

Answer: ___________________________

12. A fruit seller had 3,600 oranges. He sold 250 oranges each day for 12 days.

(a) How many oranges did he sell altogether? [2]

Answer: ___________________________

(b) How many oranges did he have left? [2]

Answer: ___________________________

13. The population of Town A is 4,562,300. The population of Town B is 3,785,450.

(a) What is the difference in population between the two towns? [2]

Answer: ___________________________

(b) What is the total population of both towns? Round your answer to the nearest ten thousand. [2]

Answer: ___________________________

Section C: Word Problem (8 marks)

Questions 14–15. Show all your working clearly.

14. Mr Tan earned $4,800** in January. In February, he earned **$ 650 more than in January. In March, he earned twice as much as in February.

(a) How much did Mr Tan earn in February? [2]

Answer: ___________________________

(b) How much did Mr Tan earn in March? [2]

Answer: ___________________________

(c) What was Mr Tan's total earnings over the three months? [2]

Answer: ___________________________

15. A warehouse had 2,400,000 grains of rice. The rice was packed into bags of 50,000 grains each. The bags were then loaded equally onto 8 trucks.

(a) How many bags of rice were packed? [2]

Answer: ___________________________

(b) How many bags were loaded onto each truck? [2]

Answer: ___________________________

— End of Paper —

Answers

TuitionGoWhere Practice Paper — Mathematics Primary 5

Answer Key — Whole Numbers (Version 5 of 5)

Section A: Short Answers (20 marks)

1. Write in numerals: Three million, four hundred and fifty-six thousand, seven hundred and eight.

Answer: 3,456,708

Working:

Three million = 3,000,000
Four hundred and fifty-six thousand = 456,000
Seven hundred and eight = 708
Combined: 3,000,000 + 456,000 + 708 = 3,456,708

[2 marks] — 1 mark for correct placement of millions, thousands, and ones; 1 mark for correct final answer.

2. Value of digit 7 in 4,735,209.

Answer: 700,000 (seven hundred thousand)

Working:

The digit 7 is in the hundred thousands place.
7 × 100,000 = 700,000

[2 marks] — 1 mark for identifying the correct place value; 1 mark for the correct value.

3. Arrange from smallest to largest: 5,203,618; 5,023,816; 5,320,168; 5,032,681

Answer: 5,023,816, 5,032,681, 5,203,618, 5,320,168

Working:

All numbers have 5 millions, so compare the hundred thousands digit:
- 5,023,816 → hundred thousands digit = 0
- 5,032,681 → hundred thousands digit = 0 (compare ten thousands: 3 > 2, so 5,032,681 > 5,023,816)
- 5,203,618 → hundred thousands digit = 2
- 5,320,168 → hundred thousands digit = 3
Order: 5,023,816 < 5,032,681 < 5,203,618 < 5,320,168

[2 marks] — 1 mark for correct identification of smallest and largest; 1 mark for fully correct order.

4. Round 6,487,352 to the nearest hundred thousand.

Answer: 6,500,000

Working:

The hundred thousands digit is 4 (in 6,487,352).
The ten thousands digit is 8, which is ≥ 5, so we round up.
6,487,352 → 6,500,000

[2 marks] — 1 mark for identifying the correct place value to round; 1 mark for correct rounded answer.

5. Fill in the missing number: 8,500,000 = 8,000,000 + ___________ + 0 + 0 + 0 + 0 + 0

Answer: 500,000

Working:

8,500,000 − 8,000,000 = 500,000
The missing number is in the hundred thousands place.

[2 marks] — 1 mark for correct subtraction; 1 mark for correct answer.

6. 250 × 600 = ___________

Answer: 150,000

Working:

250 × 600 = 250 × 6 × 100
250 × 6 = 1,500
1,500 × 100 = 150,000

[2 marks] — 1 mark for correct method; 1 mark for correct final answer.

7. 72,000 ÷ 800 = ___________

Answer: 90

Working:

72,000 ÷ 800 = 72,000 ÷ 8 ÷ 100
72,000 ÷ 8 = 9,000
9,000 ÷ 100 = 90

Alternative: Cancel zeros: 72,000 ÷ 800 = 720 ÷ 8 = 90

[2 marks] — 1 mark for correct method; 1 mark for correct final answer.

8. 48 + 36 ÷ 6 × 5 − 7

Answer: 71

Working (BODMAS):

Division first: 36 ÷ 6 = 6
Multiplication: 6 × 5 = 30
Addition: 48 + 30 = 78
Subtraction: 78 − 7 = 71

[2 marks] — 1 mark for correct order of operations; 1 mark for correct final answer.

9. (25 + 15) × (8 − 3)

Answer: 200

Working:

Brackets first: 25 + 15 = 40
Brackets: 8 − 3 = 5
Multiply: 40 × 5 = 200

[2 marks] — 1 mark for evaluating brackets correctly; 1 mark for correct final answer.

10. 4,800 toys ÷ 16 boxes = ___________

Answer: 300 toys

Working:

4,800 ÷ 16 = 4,800 ÷ 4 ÷ 4 = 1,200 ÷ 4 = 300

[2 marks] — 1 mark for correct method; 1 mark for correct answer with unit.

Section B: Structured Questions (12 marks)

11. Library books: 125,680 books. Donated 38,450. Received 15,720.

(a) Books left after donation:

Answer: 87,230 books

Working:

125,680 − 38,450 = 87,230

[2 marks] — 1 mark for correct subtraction; 1 mark for correct answer.

(b) Books after receiving new donation:

Answer: 102,950 books

Working:

87,230 + 15,720 = 102,950

[2 marks] — 1 mark for correct addition; 1 mark for correct answer.

12. Fruit seller: 3,600 oranges. Sold 250/day for 12 days.

(a) Oranges sold altogether:

Answer: 3,000 oranges

Working:

250 × 12 = 250 × 10 + 250 × 2 = 2,500 + 500 = 3,000

[2 marks] — 1 mark for correct multiplication; 1 mark for correct answer.

(b) Oranges left:

Answer: 600 oranges

Working:

3,600 − 3,000 = 600

[2 marks] — 1 mark for correct subtraction; 1 mark for correct answer.

13. Town A: 4,562,300. Town B: 3,785,450.

(a) Difference in population:

Answer: 776,850

Working:

4,562,300 − 3,785,450 = 776,850

[2 marks] — 1 mark for correct subtraction; 1 mark for correct answer.

(b) Total population, rounded to nearest ten thousand:

Answer: 8,350,000

Working:

Total: 4,562,300 + 3,785,450 = 8,347,750
Round to nearest ten thousands: Look at the thousands digit = 7 (≥ 5), so round up.
8,347,750 → 8,350,000

[2 marks] — 1 mark for correct addition; 1 mark for correct rounding.

Section C: Word Problems (8 marks)

14. Mr Tan's earnings: January = $4,800. February =$ 650 more than January. March = twice February.

(a) February earnings:

Answer: $5,450

Working:

$4,800 +$ 650 = $5,450

[2 marks] — 1 mark for correct addition; 1 mark for correct answer with unit.

(b) March earnings:

Answer: $10,900

Working:

$5,450 × 2 = **$ 10,900**

[2 marks] — 1 mark for correct multiplication; 1 mark for correct answer with unit.

(c) Total earnings over three months:

Answer: $21,150

Working:

$4,800 +$ 5,450 + $10,900 = **$ 21,150**

[2 marks] — 1 mark for correct addition; 1 mark for correct answer with unit.

15. Warehouse: 2,400,000 grains. Bags of 50,000 grains. Loaded onto 8 trucks equally.

(a) Number of bags packed:

Answer: 48 bags

Working:

2,400,000 ÷ 50,000 = 2,400,000 ÷ 50 ÷ 1,000 = 48,000 ÷ 1,000 = 48

Alternative: Cancel zeros: 2,400,000 ÷ 50,000 = 2,400 ÷ 50 = 48

[2 marks] — 1 mark for correct division; 1 mark for correct answer with unit.

(b) Bags per truck:

Answer: 6 bags

Working:

48 ÷ 8 = 6

[2 marks] — 1 mark for correct division; 1 mark for correct answer with unit.

— End of Answer Key —

Total: 40 marks