Class 4 Maths - WEST-BENGAL
Weigh it Pour it
The chapter 'Weigh it Pour it' in Class 4 West Bengal Board (WBBSE) mathematics introduces students to the fundamental concepts of measurement involving weight and capacity. Learners explore standard units such as kilograms and grams for weighing solid objects, and litres and millilitres for measuring liquids. Through engaging daily-life examples, students learn how to read weighing scales, measure liquids using standard containers, and perform basic addition and subtraction with different units of measurement. This chapter builds a strong foundation for practical arithmetic and problem-solving, which frequently appears in WBBSE Class 4 terminal examinations.
Start Learning FreeKey Concepts
Measurement of Weight
Heavy objects are measured in kilograms (kg) and lighter objects are measured in grams (g) using standard weighing balances.
Measurement of Capacity
The quantity of liquid a container can hold is measured in litres (l) and millilitres (ml).
Unit Conversion for Weight
To convert kilograms to grams, multiply the number of kilograms by 1000, since 1 kg equals 1000 g.
Unit Conversion for Capacity
To convert litres to millilitres, multiply the number of litres by 1000, because 1 litre equals 1000 ml.
Addition and Subtraction of Measures
Weights and capacities can be added or subtracted by keeping the same units together, like adding grams to grams and kilograms to kilograms.
Important Formulas
Board Exam Info
In the West Bengal Board (WBBSE) Class 4 mathematics examinations, this chapter typically carries around 6 to 10 marks. Common question types include unit conversion (converting kg to g and l to ml), word problems involving addition and subtraction of weights and liquids, and reading measurement scales.
Frequently Asked Questions
How do I convert kilograms into grams?
To convert kilograms into grams, you simply multiply the given kilogram value by 1000.
Why do we use millilitres instead of litres?
We use millilitres to measure very small quantities of liquid, such as medicine syrup or ink in a pen, whereas litres are used for larger quantities like water in a bucket.
How should I arrange weights for addition in word problems?
Always write kilograms (kg) under kilograms and grams (g) under grams in separate columns before adding or subtracting.
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