Question

Which number is not in scientific notation?

6 x 10^25
2.01 x 10^-2
1.3 x 10^-4
0.5 x 10^3

Answer 1

?

Answer 2

The last one I believe.

I'm pretty positive that the rule is you have to have a number greater then zero and less than or equal to 10 in front of a decimal. In the last one there is a zero.

Answer 3

Mmkae, thank you :)