How do you write $2.15 times 10^-3$ in standard notation?

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Answer 1 · 2017-05-23T18:14:06

Because the exponent of the 10s term is negative we need to move the decimal point 3 places to the left:

$2.15 xx 10^-3 = 0.00215$

How do you write 2.15 times 10^-32.15 times 10^-3 in standard notation?