A strategy I use for comparing is lining them up vertically. Example:
0.40
0.41
0.42
I added the zero to 0.4 because it is easier to compare. You can see that all of them have a four in the tenths place, but in the hundreths, the 2 is greater.
We can write an equation for this problem being, 500-(183+165)=152. So the answer is that your next must have a score of at least 152 or higher in order to win a bowling trophy.