What is the nearest whole number to 2.5

Question

This is my math and it is really really hard

Answer 1

The rule for rounding is as follows: if the number to the right of the place of significance (whole number) is 5 or above, you round up. if it is below 5, you round down.

2.5, the 5 is the number next to the whole number (2). since 5 is in the category of 5 or above, the 2 rounds up to 3.

The answer is 3