Question

When a whole number is multiplied by 101, how does the placement of the decimal point change

Answer 1

Since 101 is also a whole number, there's no decimal.

If important, you can put a decimal at the end.

Example:

10 is also 10.0

Answer 2

Every .1 you times by 10 it’s 10.1 then .2 is 20.2 etc.