Class 3 Maths - ICSE
Measurement – Capacity
The chapter 'Measurement – Capacity' introduces Class 3 ICSE students to the world of liquid measurements. Children learn to identify standard units of capacity, primarily millilitres (ml) and litres (l), and understand how much liquid different containers can hold. Students discover that 1 litre is equal to 1000 millilitres, a vital conversion rule used throughout primary mathematics. This chapter builds essential life skills for measuring daily liquids like milk, water, and juice, while also laying the foundation for word problems and conversions that carry significant weight in ICSE school examinations.
Start Learning FreeKey Concepts
What is Capacity?
Capacity is the amount of liquid that a container can hold, such as a cup, bucket, or water bottle.
Units of Capacity
We use millilitres (ml) to measure small amounts of liquid like medicine, and litres (l) to measure large amounts like petrol or water.
Standard Conversion
1 litre is equal to 1000 millilitres. This means 1 l = 1000 ml.
Addition and Subtraction of Capacity
We can add or subtract capacities by keeping litres with litres and millilitres with millilitres, just like normal numbers with regrouping.
Important Formulas
Board Exam Info
In ICSE Class 3 Mathematics assessments, this chapter typically carries around 5 to 8 marks. Common question types include converting litres to millilitres and vice versa, simple addition and subtraction of capacities with units, and word problems based on daily life situations like milk or juice distribution.
Frequently Asked Questions
Why do we use 'l' and 'ml'?
'l' stands for litre, which is used for large quantities of liquids, and 'ml' stands for millilitre, which is used for very small quantities.
How do I convert 3 litres into millilitres?
Since 1 litre is 1000 ml, you multiply 3 by 1000 to get 3000 ml.
Can we add litres and millilitres directly together?
No, you must add litres to litres and millilitres to millilitres separately, just like addition with rupees and paisa.
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