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# How do you multiply using numbers in standard form?

3 years ago

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Rosanna Gislason

1 Answer

Oscar P
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Say we multiply two numbers in standard form, 3x10^8 x 4x10^7. We can effectively multiply both parts separately, so 3*4=12 and 10^8x10^7=10^15 (by adding the indices for multiplication). Therefore we get 12x10^15, or 1.2x10^16

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