Video

Multiplying & dividing in scientific notation (Full video)

Khan Academy
Supporting grades: 8

Description: Learn how to simplify a multiplication and division expression using scientific notation. The expression in this problem is (7 × 10^5)/{[2 × (10^-2)][2.5 × (10^9)]}. Created by Sal Khan. And the denominator, I just have a bunch of numbers that are being multiplied times each other. So I'm going to do over 2 times 2.5 times 10 to the negative 2 times 10 to the ninth. And this is going to be equal to 7 times 10 to the fifth over, and here in the denominator, 2 times, let me do this in a new color now.

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