Class 4 Maths - ODISHA
Measuring Length
In the Class 4 Mathematics chapter 'Measuring Length', students of the Odisha BSE board learn how to measure everyday objects using standard units like centimetres, metres, and kilometres. This chapter builds the foundation for understanding distance and height through fun, practical activities. Children learn the relationship between different units, such as how centimetres make a metre, and practice simple addition and subtraction of lengths. Mastering this chapter is essential for scoring well in school examinations and helps students solve real-life word problems involving cloth measurement, travel distances, and bench lengths.
Start Learning FreeKey Concepts
Standard Units of Length
Millimetre, centimetre, metre, and kilometre are standard units used to measure how long or tall something is.
Centimetre (cm) and Metre (m)
Smaller objects like pencils and books are measured in centimetres, while longer objects like rooms and cloth are measured in metres.
Kilometre (km)
Very long distances, such as the distance between two towns or villages in Odisha, are measured in kilometres.
Unit Conversion
To convert metres to centimetres, we multiply the number of metres by 100, because one metre equals 100 centimetres.
Addition and Subtraction of Lengths
We can add or subtract lengths by keeping metres with metres and centimetres with centimetres in separate columns.
Important Formulas
Board Exam Info
In Odisha (BSE) Class 4 Mathematics exams, this chapter usually carries around 6 to 8 marks. Common question types include unit conversion (m to cm), word problems on adding and subtracting lengths, and filling in the blanks with appropriate units (cm, m, or km).
Frequently Asked Questions
How do I convert metres into centimetres?
To convert metres into centimetres, simply multiply the given metre value by 100.
Which unit should I use to measure the length of a classroom?
You should use metres (m) because a classroom is too long to measure in centimetres.
Do I need to write the units like cm or m in the final answer?
Yes, always write the correct unit (cm, m, or km) next to your number in math answers, otherwise marks may be cut.
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