How do you write 910.5 in scientific notation?

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Answer 1 · 2016-01-18T11:49:42

$9.105xx10^2$

Keep the decimal point where it is but slide the number to the right 2 places giving:

$9.105$

But this is a different value so we need to add a mathematical correction.

If we have: $9.105 xx 100$ then this corrects the intrinsic value.

Now we change the format to:

$9.105xx10^2$ Which is what you are after:

You must end up with only 1 digit to the left of the decimal point for it to be in scientific notation

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Further example
Suppose we had: $0.09105$

Then this would be $(9.105)/(100)$

Which ends up as: $9.105xx10^(-1)$