Topic Details (Notes format)

How to Convert Units (Metric System)

Subject: Mathematics

Book: Maths Mastery

Unit conversion is fundamental in science, engineering, and everyday tasks like cooking or traveling. Within the metric system, units scale by powers of ten, simplifying conversions. Common prefixes include kilo- (1,000), centi- (1/100), and milli- (1/1,000). For example, converting 2.5 kilometers to meters involves 2.5 × 1,000 = 2,500 meters. Similarly, 350 milliliters can be written as 0.35 liters. Memorizing base relationships—like 1 kg = 1,000 g or 1 m = 100 cm—lets you fluidly shift between units. This skill is crucial for tasks ranging from diet planning to constructing measurement-based projects and scientific research protocols.

Practice Questions

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What is the HCF of 72 and 120?

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If the perimeter of a square is 36 cm, what is the length of its diagonal?

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What is the greatest common divisor (GCD) of 36 and 48?

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If the perimeter of a square is 40 cm, what is the area of the square?

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If x + y = 10 and xy = 21, what is the value of x³ + y³?

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What is the square root of 144?

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