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Primary 4 Mathematics Measurement Quiz

Free P4 Maths Measurement quiz, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 4 Mathematics From Real Exams Generated by Tencent HY3 Free Updated 2026-08-17

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Questions

Primary 4 Mathematics Quiz - Measurement

Name: ___________________________
Class: _________
Date: ___________
Score: _______ / 40

Duration: 60 minutes
Total Marks: 40

Instructions:

This quiz has 20 questions on Measurement.
Section A: 10 short questions (1 mark each).
Section B: 6 questions (2 marks each).
Section C: 4 questions (3 marks each).
Show your working clearly where required.

Section A (1 mark each, Questions 1–10)

Express 3 km 40 m in metres.
Answer: __________ m
Express 2 kg 350 g in grams.
Answer: __________ g
Express 7500 ml in litres.
Answer: __________ l
A ribbon is 120 cm long. Express its length in metres.
Answer: __________ m
Round 4.78 l to the nearest litre.
Answer: __________ l
Which is greater: 900 g or 0.9 kg?
Answer: __________________
A book has a mass of 1.2 kg. What is its mass in grams?
Answer: __________ g
A bottle contains 1.5 l of water. How many millilitres is this?
Answer: __________ ml
Express 65 mm in centimetres.
Answer: __________ cm
A table is 95 cm wide. Round its width to the nearest 10 cm.
Answer: __________ cm

Section B (2 marks each, Questions 11–16)

A roll of wire is 5 m long. Ali cuts off 2 m 45 cm. How much wire is left? Give your answer in cm.
Answer: __________ cm
A bag of rice has a mass of 3 kg 200 g. Mother uses 850 g. What is the mass of rice left in grams?
Answer: __________ g
A tank holds 12 l of water. 3.6 l is used for washing. How much water remains? Give your answer in ml.
Answer: __________ ml
A rectangle has length 14 cm and breadth 9 cm. Find its perimeter.
Answer: __________ cm
A square has side 11 cm. Find its area.
Answer: __________ cm²
A rectangular field is 25 m long and 16 m wide. Find the area of the field.
Answer: __________ m²

Section C (3 marks each, Questions 17–20)

The figure below shows a composite shape made of two rectangles. Rectangle A is 12 cm by 8 cm. Rectangle B is 6 cm by 5 cm joined to the right of A. Find the total area of the figure.

Diagram for Q17 (P4 Maths)

Generated diagram for Q17.

Answer: __________ cm²

18. A rectangular garden is 30 m long. Its area is 450 m². Find its breadth.
Answer: __________ m

A piece of string 2 m 40 cm long is cut into 8 equal pieces. What is the length of each piece in cm?
Answer: __________ cm
A container has 4.5 l of juice. It is poured equally into 5 cups. How much juice is in each cup in ml?
Answer: __________ ml

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Answers

Primary 4 Mathematics Quiz - Measurement (Answer Key)

Total Marks: 40
Topic: Measurement

Section A (1 mark each)

3040 m
Method: 1 km = 1000 m, so 3 km = 3000 m. Add 40 m → 3040 m.
Teaching note: Convert bigger unit to smaller by multiplying; then add remainder.
2350 g
Method: 1 kg = 1000 g, so 2 kg = 2000 g. Add 350 g → 2350 g.
7.5 l
Method: 1000 ml = 1 l, so 7500 ÷ 1000 = 7.5 l.
Common mistake: writing 75 l (forgot decimal shift).
1.2 m
Method: 100 cm = 1 m, so 120 ÷ 100 = 1.2 m.
5 l
Method: 4.78 rounded to nearest whole: tenths digit 7 ≥ 5, round up to 5.
Equal
Method: 0.9 kg = 900 g, so both are same.
1200 g
Method: 1.2 × 1000 = 1200 g.
1500 ml
Method: 1.5 × 1000 = 1500 ml.
6.5 cm
Method: 65 ÷ 10 = 6.5 cm.
100 cm
Method: 95 to nearest 10 → 100 (ones digit 5 rounds up).

Section B (2 marks each)

255 cm
Working: 5 m = 500 cm; 2 m 45 cm = 245 cm.
500 − 245 = 255 cm.
Marks: 1 for conversion, 1 for answer.
2350 g
Working: 3 kg 200 g = 3200 g.
3200 − 850 = 2350 g.
Marks: 1 conversion, 1 subtraction.
8400 ml
Working: 12 − 3.6 = 8.4 l.
8.4 × 1000 = 8400 ml.
46 cm
Working: Perimeter = 2 × (length + breadth) = 2 × (14 + 9) = 2 × 23 = 46 cm.
121 cm²
Working: Area = side × side = 11 × 11 = 121 cm².
400 m²
Working: Area = length × breadth = 25 × 16 = 400 m².

Section C (3 marks each)

126 cm²
Working:
Area A = 12 × 8 = 96 cm²
Area B = 6 × 5 = 30 cm²
Total = 96 + 30 = 126 cm²
Marks: 1 for A, 1 for B, 1 for total.
15 m
Working: Breadth = Area ÷ Length = 450 ÷ 30 = 15 m.
Marks: 1 formula, 1 division, 1 answer.
30 cm
Working: 2 m 40 cm = 240 cm.
240 ÷ 8 = 30 cm.
Marks: 1 conversion, 1 division, 1 answer.
900 ml
Working: 4.5 l = 4500 ml.
4500 ÷ 5 = 900 ml.
Marks: 1 conversion, 1 division, 1 answer.