i dont get how to do scientific notation. can anyone help?

Question

here's a question: 0.00090674
and one more: 790640000.
i dont get how to do it at all, can anyone explain it to me clearly?
thanks

Answer 1

This page will show you how to convert between writing numbers in scientific notation and in "regular" , or from "regular" to scientific notation. ...
www.webmath.com/sn_convert.html


Maybe this will help.

Answer 2

scientific notation is always 10 to some power.
the decimal should be inbetween the first and second number, not counting zeros.

the first one: 0.00090674
should be: 00009.0674
you moved the decimal 4 places to the right.
this means that it is positive.
your answer would be 10^4 (to the fourth power)

same for the second one.

you have: 790640000.
should be: 7.90640000
you moved the decimal 8 places to the LEFT this time.
your answer would be 10^-8 (to the negative eighth power)
because you moved to the left, its negative.