Round 0.4571 to the nearest hundredth

So,

To round the nearest hundredth, look at the number that is three places to the right of the decimal point.  If the number is greater than or equal to 5, then round up.  If the number is less than 5, then round down.

0.4571
7 ≥ 5
Therefore, we round up.
0.4571 --> 0.46

0.4571 rounded to the nearest hundredth is 0.46.