Class 4 Maths Chapter 6 Measuring Length – Extra Questions with Answers

Millimetres, centimetres, metres, and kilometres each suit a different job, and Class 4 Maths Chapter 6 teaches students when to use which — these questions practice unit conversions and picking the right unit for the right object.

Last Updated: September 23, 2026

Very Short Answer Questions

Q1. Name the standard units used to measure length.
Ans: Millimetre (mm), centimetre (cm), metre (m), and kilometre (km).

Q2. How many centimetres make 1 metre?
Ans: 100 centimetres.

Q3. How many metres make 1 kilometre?
Ans: 1,000 metres.

Short Answer Questions

Q4. Convert 350 centimetres into metres and centimetres.
Ans: 3 metres 50 centimetres.

Q5. Which unit would you use to measure the length of a pencil, and which unit would you use to measure the distance between two cities? Why?
Ans: A pencil is measured in centimetres because it is small; the distance between two cities is measured in kilometres because it is a very large distance.

Higher-Order Thinking Question

Q6. A rope is 2 metres 40 centimetres long. If it is cut into 4 equal pieces, how long is each piece?
Ans: 2 m 40 cm = 240 cm; 240 ÷ 4 = 60 cm, so each piece is 60 centimetres long.

More Practice Questions (2026-27 Curriculum)

Q1. A rectangle has sides of 4 cm, 6 cm, 4 cm, and 6 cm. What is its perimeter?
4+6+4+6 = 20 cm.

Q2. A square has all sides equal to 5 cm. What is its perimeter?
5+5+5+5 = 20 cm.

Q3. Which unit would you use to measure the length of a classroom — centimetres or metres?
Metres (a room is too long to measure conveniently in cm).

Q4. Which unit would you use to measure the length of a pencil — centimetres or metres?
Centimetres.

Q5. A triangle has sides 3 cm, 4 cm, and 5 cm. What is its perimeter?
3+4+5 = 12 cm.

Frequently Asked Questions

How would you measure the length of a pencil using a ruler?
Place the ruler alongside the pencil starting at the 0 mark, then read the measurement at the other end of the pencil in centimeters.

How would you convert 250 centimeters into meters?
Divide by 100 since 1 meter equals 100 centimeters, giving 250 over 100 = 2.5 meters.

Written by Satish

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