Answer
right
zeroes
Work Step by Step
When a whole number is multiplied by a power of 10, the number of zeroes in the power of ten are added on the right side of the whole number to fill in up to the new decimal.
$123\times10=123\underset{\smile}\!\!\!\!\!\!.0.=1230$
Similarly, the decimal is moved when the factor multiplied by a power of 10 is not a whole number.
$12.3\times10=12\underset{\smile}\!\!\!\!\!\!.3.=123$
