Approximating with powers of 10 (Full video)

Khan Academy

Supporting grades: 8

Description: Learn how to approximate how much larger the world population was than the US population in 2014. In 2014, the population of the United States was about 318,900,000 people. Choose the best approximation of the United States population in 2014. Three times 10 to the eighth power, which they have right over here.

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