In general, when a number written in scientific notation includes a positive exponent, the absolute value of that number is

positive exponents are big numbers; so your number gets bigger

In general, if a number is written in a scientific notation which includes an exponent that is positive, the absolute value of that number is positive. This is because if the number is bigger than 1 and it is in absolute value, then that means it is a positive number.

21/2 or 5/2