Primary 6 PSLE Mathematics PSLE Revision Quiz Set 1

P6 Maths Quiz: PSLE Revision

Questions: 20 Time: 40 minutes Total Marks: 30

Section A: Multiple Choice Questions (10 marks)

Choose the best answer for each question. Each question carries 1 mark.

1. What is 3.75 as a mixed number in simplest form? a) 3¾ b) 3⁷⁄₁₀ c) 3¹⁵⁄₂₀ d) 3³⁄₄

2. A rectangle has length 12 cm and width 8 cm. What is its area? a) 40 cm² b) 96 cm² c) 20 cm² d) 48 cm²

3. Convert 2.4 m to centimeters: a) 24 cm b) 240 cm c) 2400 cm d) 0.024 cm

4. What is 40% of 250? a) 90 b) 100 c) 110 d) 120

5. A train travels 180 km in 3 hours. What is its average speed? a) 50 km/h b) 60 km/h c) 70 km/h d) 80 km/h

6. The ratio of boys to girls in a class is 3:4. If there are 21 boys, how many girls are there? a) 24 b) 28 c) 32 d) 36

7. What is the volume of a cube with side length 5 cm? a) 25 cm³ b) 75 cm³ c) 125 cm³ d) 150 cm³

8. An angle of 135° is: a) Acute b) Right c) Obtuse d) Reflex

9. The mean of 8, 12, 15, and 9 is: a) 10 b) 11 c) 12 d) 13

10. In the expression 3x + 7 = 22, what is the value of x? a) 4 b) 5 c) 6 d) 7

Section B: Short Answer Questions (10 marks)

Answer all questions. Show your working clearly.

11. Calculate: 4½ + 2⅓ - 1¼ (3 marks)

12. A bicycle wheel has a diameter of 70 cm. How far does the bicycle travel in one complete revolution of the wheel? (Take π = 22/7) (3 marks)

13. The temperature at 6 AM was 18°C. By noon, it had increased by 12°C. In the evening, it dropped by 8°C. What was the evening temperature? (2 marks)

14. A shopkeeper bought 240 apples. 15% of them were rotten and had to be thrown away. How many good apples were left? (2 marks)

Section C: Problem Solving Questions (10 marks)

Answer all questions. Show your working clearly.

15. Mrs. Lim has a rectangular garden that is 15 m long and 10 m wide. She wants to build a fence around it. If fencing costs $8 per meter, how much will it cost to fence the entire garden? (4 marks)

16. A container can hold 4.5 litres of water when full. If ⅔ of the container is filled with water, how much more water is needed to fill it completely? Give your answer in millilitres. (6 marks)

P6 Maths Quiz: PSLE Revision - Answer Key

Section A: Multiple Choice Questions (10 marks)

1. a) 3¾

   • 3.75 = 3 + 0.75 = 3 + ¾ = 3¾

2. b) 96 cm²

   • Area = length × width = 12 × 8 = 96 cm²

3. b) 240 cm

   • 2.4 m = 2.4 × 100 = 240 cm

4. b) 100

   • 40% of 250 = 0.40 × 250 = 100

5. b) 60 km/h

   • Speed = Distance ÷ Time = 180 ÷ 3 = 60 km/h

6. b) 28

   • Ratio boys:girls = 3:4
   • If 3 parts = 21 boys, then 1 part = 7
   • Girls = 4 parts = 4 × 7 = 28

7. c) 125 cm³

   • Volume = side³ = 5³ = 125 cm³

8. c) Obtuse

   • 135° is between 90° and 180°, so it's obtuse

9. b) 11

   • Mean = (8 + 12 + 15 + 9) ÷ 4 = 44 ÷ 4 = 11

10. b) 5

    • 3x + 7 = 22
    • 3x = 15
    • x = 5

Section B: Short Answer Questions (10 marks)

11. 5⁷⁄₁₂ (3 marks)

    • 4½ + 2⅓ - 1¼
    • Convert to improper fractions: ⁹⁄₂ + ⁷⁄₃ - ⁵⁄₄
    • Find common denominator (12): ⁵⁴⁄₁₂ + ²⁸⁄₁₂ - ¹⁵⁄₁₂
    • = ⁶⁷⁄₁₂ = 5⁷⁄₁₂

12. 220 cm (3 marks)

    • Distance = circumference = πd
    • = 22/7 × 70 = 22 × 10 = 220 cm

13. 22°C (2 marks)

    • Starting temperature: 18°C
    • After increase: 18 + 12 = 30°C
    • Evening temperature: 30 - 8 = 22°C

14. 204 apples (2 marks)

    • Rotten apples: 15% of 240 = 0.15 × 240 = 36 apples
    • Good apples: 240 - 36 = 204 apples

Section C: Problem Solving Questions (10 marks)

15. $400 (4 marks)

    • Perimeter = 2(length + width) = 2(15 + 10) = 2 × 25 = 50 m
    • Cost = 50 × $8 =$400

16. 1500 millilitres (6 marks)

    • Container capacity = 4.5 litres
    • Current water = ⅔ × 4.5 = 3 litres
    • Additional water needed = 4.5 - 3 = 1.5 litres
    • Convert to millilitres: 1.5 × 1000 = 1500 ml