Class 8 / CBSE Maths / Exponents and Powers / Exponents and Powers

Exponents and Powers

Introduction Do you know? Mass of earth is 5,970,000,000,000, 000, 000, 000, 000 kg. We have already learnt in earlier class how to write such large numbers more conveniently using exponents, a

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Class 8 / CBSE Maths / Exponents and Powers / Exponents and Powers

Exponents and Powers

Powers with Negative Exponents You know that, 102 = 10 × 10 = 100                     &

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Class 8 / CBSE Maths / Exponents and Powers / Exponents and Powers

Exponents and Powers

Laws of Exponents We have learnt that for any non-zero integer a, a m × a n = a m + n , where m and n are natural numbers. Does this law also hold if the exponents are negative? Let us explor

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Class 8 / CBSE Maths / Exponents and Powers / Exponents and Powers

Exponents and Powers

Use of Exponents to Express Small Numbers in Standard Form Observe the following facts. 1. The distance from the Earth to the Sun is 149,600,000,000 m. 2. The speed of light is 300,000,000

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Class 8 / CBSE Maths / Exponents and Powers / Exponents and Powers

Exponents and Powers

Comparing very large and very small numbers The diameter of the Sun is 1.4 × 109 m and the diameter of the Earth is 1.2756 × 107 m. Suppose you want to compare the diameter of the E

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