Primary 5 Mathematics Measurement Quiz

Primary 5 Mathematics Quiz - Measurement (Answer Key)

Topic: Measurement
Level: Primary 5
Note: Syllabus-first generated content. Not derived from past-year papers.

Section A Answers (1 mark each)

1. 3500 m
Working: $3.5 \text{ km} = 3.5 \times 1000 = 3500 \text{ m}$.
Teaching note: To convert km to m, multiply by 1000 because 1 km = 1000 m.

2. 2.5 ℓ
Working: $2500 \text{ ml} = 2500 \div 1000 = 2.5 \text{ ℓ}$.
Teaching note: 1000 ml = 1 ℓ, so divide ml by 1000 to get litres.

3. 4300 g
Working: $4 \text{ kg} = 4000 \text{ g}$, plus $300 \text{ g} = 4300 \text{ g}$.
Teaching note: 1 kg = 1000 g.

4. 30 cm³
Working: Volume = $5 \times 3 \times 2 = 30 \text{ cm}^3$.
Teaching note: Volume of cuboid = length × width × height.

5. 80 cm
Working: $0.8 \text{ m} = 0.8 \times 100 = 80 \text{ cm}$.
Teaching note: 1 m = 100 cm.

6. 200 cm³
Working: $10 \times 5 \times 4 = 200 \text{ cm}^3$.

7. 12 m
Working: $1200 \text{ cm} = 1200 \div 100 = 12 \text{ m}$.

8. 3000 ml
Working: $3 \text{ ℓ} = 3 \times 1000 = 3000 \text{ ml}$.

9. 64 cm³
Working: $4 \times 4 \times 4 = 64 \text{ cm}^3$.

10. 2600 g
Working: $2.6 \text{ kg} = 2.6 \times 1000 = 2600 \text{ g}$.

Section B Answers (2 marks each)

11. 1500 cm³
Working: $1.5 \text{ ℓ} = 1.5 \times 1000 = 1500 \text{ cm}^3$ (since 1 ℓ = 1000 cm³).
Marks: 1 for correct conversion factor, 1 for answer.

12. 3 ℓ
Working: Volume = $20 \times 10 \times 15 = 3000 \text{ cm}^3$.
Convert: $3000 \text{ cm}^3 = 3000 \div 1000 = 3 \text{ ℓ}$.
Marks: 1 for volume in cm³, 1 for litres conversion.

13. 6 cm
Working: Height = Volume ÷ (length × width) = $240 \div (10 \times 4) = 240 \div 40 = 6 \text{ cm}$.
Marks: 1 for method, 1 for answer.

14. 2450 g
Working: $2 \text{ kg} = 2000 \text{ g}$, plus 450 g = 2450 g.
Marks: 1 for kg conversion, 1 for total.

15. 125 cm
Working: $1.25 \text{ m} = 1.25 \times 100 = 125 \text{ cm}$.

16. 5 ℓ
Working: $5000 \text{ cm}^3 = 5000 \div 1000 = 5 \text{ ℓ}$.

Section C Answers (3 marks each)

17. 15 ℓ
Working:
Volume = $30 \times 20 \times 25 = 15000 \text{ cm}^3$.
Convert: $15000 \text{ cm}^3 = 15000 \div 1000 = 15 \text{ ℓ}$.
Marks: 1 for dimensions multiplied, 1 for cm³ answer, 1 for litre conversion.

18. 9 cm
Working: Edge = $\sqrt[3]{729} = 9 \text{ cm}$ because $9 \times 9 \times 9 = 729$.
Marks: 1 for cube root concept, 2 for correct value.

19. 1450 ml
Working:
$2 \text{ ℓ} 300 \text{ ml} = 2000 + 300 = 2300 \text{ ml}$.
Left = $2300 - 850 = 1450 \text{ ml}$.
Marks: 1 for conversion to ml, 1 for subtraction, 1 for answer.

20. 400 cm³, 400 ml
Working:
Volume = base area × height = $50 \times 8 = 400 \text{ cm}^3$.
Since $1 \text{ cm}^3 = 1 \text{ ml}$, volume = 400 ml.
Marks: 1 for volume, 1 for cm³ answer, 1 for ml conversion.