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What is 2.28 × 10^-8 in standard form?

I know the answer is 0.0000000228. Could someone write out the equation of how to solve this?

2 answers

move the decimal point the number of places as the exponent of 10
... negative is to the left, positive to the right

eg. 1.4 x 10^-3 =.0014 ... decimal point 3 places left

Thank you!!

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