Question

When a number is written in scientific notation, how can you tell right away whether or not it is greater than or equal to 1?

Answer 1

A number is written in scientific notation is greater than or equal to `1`, if power of ten is greater than or equal to `0`.

Explanation:

A number written in scientific notation is of the form

`axx10^n`, where `1<=a<10` and `n` is an integer.

The number is greater than or equal to one, if `n>=0`.