10 trillion in scientific notation

Asked by maham237 @ 12/02/2021 in Mathematics viewed by 289 People

When writing twenty-one-and-a-half-trillion in scientific notation, what is the exponent needed on the base ten?
I also need an explanation on how to find this!

Answered by maham237 @ 12/02/2021

1 trillion is 10^9.

Thus, 21 1/2 trillion is 21 1/2 times 10^9, or 2.15 times 10^10

Hope this helps. If not, ask for clarification.

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