Answer
The decimal place is moved one to the left.
Work Step by Step
We first perform all of the multiplication:
$$ (.538)(.1) =.0538 \\ (10.5)(.1)=1.05 \\ (58)(.1)=5.8 \\ (4.95)(.1)=.495 \\ (.9)(.1)=.09 \\ (300)(.1)=30$$
We see that when multiplying by .1, the decimal place is moved one to the left. If multiplying by .01, the decimal place is moved two to the left. If multiplying by .001, the decimal place is moved 3 to the left.
