Measurement (Length and Mass) Worksheet for Class 3 ICSE — Free PDF with Answers

Measurement connects mathematics to the physical world. In Class 3, the ICSE syllabus formalises what children already know intuitively — that some things are longer, heavier, or hold more than others — by introducing standard units and conversions.

The ICSE board, governed by CISCE, places considerable emphasis on measurement as a practical life skill. Children learn to measure with rulers, read weighing scales, convert between units, and solve word problems involving length and mass. These are not abstract exercises — they prepare children to estimate distances, weigh ingredients, and make sense of the quantitative world around them.

This Class 3 ICSE measurement worksheet provides 60 questions across three levels, covering both length (centimetres, metres, kilometres) and mass (grams, kilograms). Every question comes with a step-by-step solution.

The ICSE Class 3 measurement curriculum for length and mass includes the following.

Standard units of length. Centimetre (cm), metre (m), and kilometre (km). Children learn the relationships: $1$ m $= 100$ cm, $1$ km $= 1{,}000$ m.

Measuring length. Using a ruler to measure objects in centimetres. Reading lengths from a scale accurately.

Conversion of length units. Converting metres to centimetres and vice versa. For example, $3$ m $25$ cm $= 325$ cm.

Addition and subtraction of lengths. $4$ m $50$ cm $+ 2$ m $75$ cm $= 7$ m $25$ cm. This involves carrying from cm to m.

Standard units of mass. Gram (g) and kilogram (kg). The relationship: $1$ kg $= 1{,}000$ g.

Weighing. Reading a weighing scale and expressing weight in kg and g.

Conversion of mass units. Converting kilograms to grams and vice versa. For example, $2$ kg $350$ g $= 2{,}350$ g.

Addition and subtraction of mass. $5$ kg $200$ g $- 2$ kg $750$ g. This requires borrowing from kg to g.

Estimation. Estimating lengths and masses of everyday objects — is a pencil closer to 15 cm or 50 cm? Is a bag of rice closer to 1 kg or 5 kg?

Word problems. Real-life scenarios involving measuring, buying, and comparing lengths and masses.

The worksheet covers a wide range of measurement skills.

• Conversion — Convert $4$ m $35$ cm to cm. Convert $3{,}250$ g to kg and g.
  - Addition of measurements — $3$ m $45$ cm $+ 2$ m $80$ cm $=$ ___
  - Subtraction of measurements — $5$ kg $100$ g $- 1$ kg $650$ g $=$ ___
  - Comparison — Which is longer: $350$ cm or $3$ m $25$ cm?
  - Estimation — Choose the best estimate for the height of a classroom door: 2 m, 20 m, or 200 m.
  - Reading a scale — A ruler shows an object from the 3 cm mark to the 11 cm mark. How long is the object?
  - Word problems — Priya walks $1$ km $200$ m to school and $800$ m to the market. How far does she walk in total?
  - Fill in the blanks — $1$ km $=$ ___ m
  - Ordering — Arrange in ascending order: $2$ kg, $1{,}500$ g, $2$ kg $300$ g, $1$ kg $900$ g

This variety ensures children can handle measurements in any format they encounter in ICSE exams.

Level 1 focuses on understanding units and performing simple conversions.

Sample questions:

1. Convert $3$ m to cm.
*Answer: $3 \times 100 = 300$ cm.*

2. Convert $4{,}500$ g to kg and g.
*Answer: $4{,}500$ g $= 4$ kg $500$ g (since $1$ kg $= 1{,}000$ g).*

3. What is the best unit to measure the length of a cricket pitch: cm, m, or km?
Answer: Metres (a cricket pitch is about 20 m long).

4. Add: $2$ m $30$ cm $+ 1$ m $40$ cm.
*Answer: $2$ m $30$ cm $+ 1$ m $40$ cm $= 3$ m $70$ cm.*

5. An apple weighs $150$ g. What is the weight of 2 apples?
*Answer: $150 \times 2 = 300$ g.*

Level 1 ensures children are comfortable with the units and can perform straightforward conversions without errors. The most important thing at this stage is memorising the conversion factors: $1$ m $= 100$ cm and $1$ kg $= 1{,}000$ g.

A useful home exercise: measure five objects around the house with a ruler and write down their lengths in centimetres.

Level 2 introduces measurements where addition requires carrying and subtraction requires borrowing between units.

Sample questions:

1. Add: $4$ m $75$ cm $+ 3$ m $60$ cm.
*Answer: cm: $75 + 60 = 135$ cm $= 1$ m $35$ cm. Carry $1$ m. Metres: $4 + 3 + 1 = 8$ m. Total: $8$ m $35$ cm.*

2. Subtract: $6$ kg $200$ g $- 2$ kg $750$ g.
*Answer: Cannot subtract $750$ g from $200$ g. Borrow: $6$ kg $200$ g $= 5$ kg $1{,}200$ g. Now: $1{,}200 - 750 = 450$ g. $5 - 2 = 3$ kg. Answer: $3$ kg $450$ g.*

3. Compare: Which is heavier, $3$ kg $50$ g or $3{,}400$ g?
*Answer: Convert $3$ kg $50$ g $= 3{,}050$ g. Since $3{,}400 > 3{,}050$, $3{,}400$ g is heavier.*

4. A rope is $8$ m $40$ cm long. A piece of $3$ m $65$ cm is cut off. What is the length of the remaining rope?
*Answer: $8$ m $40$ cm $- 3$ m $65$ cm. Borrow: $7$ m $140$ cm $- 3$ m $65$ cm $= 4$ m $75$ cm.*

5. Arrange in ascending order: $2{,}100$ g, $2$ kg $50$ g, $1$ kg $950$ g.
*Answer: Convert all to grams: $2{,}100$ g, $2{,}050$ g, $1{,}950$ g. Ascending: $1{,}950$ g, $2{,}050$ g, $2{,}100$ g, i.e., $1$ kg $950$ g, $2$ kg $50$ g, $2{,}100$ g.*

Level 2 is where the real skill develops. Carrying and borrowing with measurement units uses the same logic as with numbers, but the conversion factor is 100 (for length) or 1,000 (for mass) instead of 10.

Level 3 combines measurement skills with multi-step reasoning.

Sample questions:

1. A tailor has $10$ m of cloth. He cuts $3$ m $45$ cm for one dress and $2$ m $80$ cm for another. How much cloth is left?
*Answer: Total used $= 3$ m $45$ cm $+ 2$ m $80$ cm $= 6$ m $25$ cm. Remaining $= 10$ m $- 6$ m $25$ cm $= 3$ m $75$ cm.*

2. Three bags weigh $2$ kg $500$ g, $1$ kg $750$ g, and $3$ kg $250$ g. What is their total weight? Is it more or less than $8$ kg?
*Answer: $2$ kg $500$ g $+ 1$ kg $750$ g $+ 3$ kg $250$ g $= 7$ kg $500$ g. It is less than $8$ kg.*

3. Rohan is $1$ m $32$ cm tall. His father is $1$ m $76$ cm tall. How much taller is his father?
*Answer: $1$ m $76$ cm $- 1$ m $32$ cm $= 0$ m $44$ cm $= 44$ cm.*

4. A packet of sugar weighs $1$ kg. After using some, it weighs $375$ g. How much sugar was used?
*Answer: $1$ kg $= 1{,}000$ g. Used $= 1{,}000 - 375 = 625$ g.*

5. Meera walks $1$ km $500$ m from home to school and the same distance back. How many metres does she walk in total?
*Answer: One way $= 1$ km $500$ m $= 1{,}500$ m. Both ways $= 1{,}500 \times 2 = 3{,}000$ m $= 3$ km.*

These problems test whether children can select the right operation, handle unit conversions, and present their answers clearly with units — all skills valued in ICSE assessments.

Measure everything. Give your child a ruler and a measuring tape. Ask them to measure the length of books, tables, rooms, and corridors. Record the measurements in a notebook. This hands-on practice is the best way to develop measurement sense.

Cook together. Cooking involves weighing ingredients — $250$ g of flour, $500$ g of sugar. Let your child read the kitchen scale and practise conversions. "We need $1$ kg $500$ g of potatoes. We have $800$ g. How much more do we need?"

Estimate before measuring. Before measuring an object, ask your child to guess its length or weight. Then measure to check. Over time, their estimates will become remarkably accurate.

Conversion chant. "100 centimetres make a metre, 1000 grams make a kilogram, 1000 metres make a kilometre." A simple chant repeated daily embeds these facts permanently.

Shopping maths. At the grocery store, look at product weights on packaging. "This box of cereal is $450$ g. Is that more or less than half a kilogram?" These real-world connections make measurement meaningful.

Use body benchmarks. A child's hand span is roughly $15$ cm. A long stride is about $50$ cm. Knowing these benchmarks helps with quick estimation.

SparkEd provides two free resources for ICSE Class 3 measurement (length and mass).

Free printable worksheet. Download a PDF with 60 questions across three levels covering unit conversions, addition and subtraction of measurements, estimation, and word problems. Every answer includes a detailed solution with units clearly shown. Download the Measurement worksheet here.

Online interactive practice. Answer measurement questions on screen with instant feedback. SparkEd checks not just the numerical answer but also the unit, helping children develop the habit of always including units. Start practising Measurement online.

Both resources follow the ICSE (CISCE) syllabus precisely. The question types match ICSE school exam formats. Worksheets are free to download, and online practice is free with a SparkEd account.

After mastering length and mass, the natural next topic is Measurement (Capacity), which covers litres and millilitres using the same conversion and computation skills.