NCERT Class 4 Maths
Measuring Length Class 4 Maths Worksheet with Quiz and Activities
NCERT Maths Mela Chapter 6: measure with a ruler and tape, change metres and centimetres, use half and quarter metres and compare lengths and heights. On WitKnowLearn you get the Measuring Length Class 4 online quiz, online activities and interactive games, maths labs and a practice sheet, all on one page.
Flip the cards and try the Shadow Lab, then tap the Games, Labs or Challenges square.
Measuring Length Class 4 Online Quiz
20 questions · tap an answer to move on · full review at the end
Flip the cards, try the Ruler Lab, then play the games, do the labs and take the challenges. Earn up to 3 stars in every activity.
Fact cards: tap a card to flip it
Ruler Lab
Read the lengths of six objects on a centimetre ruler. The first two start at 0; the others start at another mark, so subtract the start mark from the end mark. A wrong number shows a hint.
Challenge marks: 0 / 15 (0 of 5 challenges done)
Finish all 5 challenges to see your comment.
Practice sheet
Measuring Length Class 4 Activities
Read rulers, change metres and centimetres, compare heights and pop one-metre bubbles. Earn up to 3 stars in every activity.
What is length?
Length tells how long, tall, wide or deep something is. We measure short lengths in centimetres (cm) with a ruler and long lengths in metres (m) with a measuring tape. 1 m = 100 cm.
A train 🚂 carriage is many metres long, but its ticket is only a few centimetres!
Lengths to know
| Length | In cm | Example |
|---|---|---|
| 📏 1 m | 100 cm | a big step |
| 🌓 1/2 m | 50 cm | a school bag |
| 🍕 1/4 m | 25 cm | a notebook |
| ✋ hand span | about 15 cm | your hand |
How to measure with a ruler
- Put one end of the object at the 0 mark.
- Read the mark at the other end.
- If it starts at another mark, subtract the start from the end.
- Write the unit: cm or m.
More examples
This Measuring Length worksheet for Class 4 (NCERT Maths Mela Chapter 6) turns metres and centimetres into a train ride with online activities and interactive games. Flip the cards, read rulers in the Ruler Lab, then play the games, do the maths labs and try the challenges.
Maths Measuring Length Class 4
Measuring Length is Chapter 6 of the new NCERT Maths Mela textbook for Class 4. Children estimate and measure lengths using a ruler and a measuring tape, learn that 1 metre is 100 centimetres, use half, quarter and three-quarter metres, change metres to centimetres and back, compare heights and lengths, and meet the idea of perimeter as the length around a shape. This guide explains each idea in simple language for Class 4 students, parents and teachers. It goes with the Measuring Length worksheet for Class 4 on WitKnowLearn, which also gives an online quiz, online activities and interactive games on the same page.
Introduction to NCERT Class 4 Maths Chapter 6: Measuring Length
Book: NCERT Maths Mela, Class 4 (new syllabus). Chapter: 6, Measuring Length. The activities on this page follow the ideas of the chapter in our own words and examples; they are not copied from the textbook.
What is there in this chapter
- Estimating lengths with hand spans and steps
- Measuring with a ruler and a measuring tape
- Metres and centimetres: 1 m = 100 cm
- Half, quarter and three-quarter metres
- Changing metres to centimetres and back
- Comparing heights and lengths; perimeter
Learning objectives
These objectives are written for this page from the chapter's goals; they are not copied from the book.
- Measure lengths correctly with a ruler or tape.
- Choose centimetres or metres for a length.
- Change between metres and centimetres.
- Compare and add or subtract lengths.
Learning outcomes
After this page a child can:
- Read an object from 1 cm to 13 cm as 12 cm.
- Say that 1 m 20 cm = 120 cm.
- Say that half a metre is 50 cm and a quarter metre is 25 cm.
- Find how many 6 m buses make a 30 m whale (5).
Measuring Length Class 4 resources on this page
| Resource | What it does |
|---|---|
| Measuring Length Class 4 online quiz | 20 questions in three levels with a full answer review |
| Flip cards | Six cards on rulers, tapes, half and quarter metres, heights, estimating and long lengths |
| Ruler Lab | Read the lengths of six objects on a centimetre ruler, some not starting at 0 |
| 5 interactive games | Centimetres or metres, one metre bubbles, metre memory, length gaps, which is longer |
| 5 maths labs | Metres to centimetres, centimetres to metres, ruler reading, length stories, compare with 1 metre |
| 5 challenges | Marked out of 3 each with a total out of 15 |
| Practice sheet | 16 questions with answer boxes and a live score |
Metres and centimetres
| Metres | Centimetres |
|---|---|
| 1 m | 100 cm |
| 3/4 m | 75 cm |
| 1/2 m | 50 cm |
| 1/4 m | 25 cm |
| 2 m 35 cm | 235 cm |
Types of questions
- Read a ruler
- Choose cm or m
- Change metres and centimetres
- Compare lengths and heights
- Length word problems
Solved examples
Common mistakes
| Mistake | Correct |
|---|---|
| Starting the ruler at 1 | Start at 0, or subtract the start mark. |
| 1 m 5 cm = 15 cm | 1 m 5 cm = 105 cm. |
| Comparing 1 m 40 cm and 150 cm without changing units | Change both to cm: 140 cm < 150 cm. |
| Measuring a room in cm | Use metres for long lengths. |
Daily life
We measure our height, cloth for clothes, the length of a table, the distance of a long jump and the size of a room. Tailors, carpenters and builders measure lengths every day.
Tips for parents and teachers
- Measure family members' heights and compare them.
- Estimate with hand spans, then check with a ruler.
- Use a measuring tape to find the length of a room.
- Cut a string 1 m long and fold it into halves and quarters.
- Let the child retry the challenges to earn 3 stars.
Related NCERT Maths Mela Class 4 Worksheets
- Chapter 1: Shapes Around Us Class 4
- Chapter 2: Hide and Seek Class 4
- Chapter 3: Patterns Around Us Class 4
- Chapter 4: Thousands Around Us Class 4
- Chapter 5: Sharing and Measuring Class 4
- Chapter 7: The Cleanest Village Class 4
- Chapter 8: Weigh it, Pour it Class 4
- Chapter 9: Equal Groups Class 4
- Chapter 10: Elephants, Tigers and Leopards Class 4
- Chapter 11: Fun with Symmetry Class 4
- Chapter 12: Ticking Clocks and Turning Calendar Class 4
- Chapter 13: The Transport Museum Class 4
Frequently Asked Questions
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