It would be 3 miles because 2.63 look at the numbers after the decimal, u see that 63 is closer to 100 then 0 so u just make it a 3. If it was closer to 0 then it would be 2 miles, but its not so thats y its 3miles. Hopes this helps you.
2.63=3miles
Key: Look to see if the number is closest to 100 or 0
If it is a number like 2.263 then you would have to look to see if the numbers behind the decimal is closes to 300 or 0.
GOOD LUCK!!!! HOPE U UNDERSTAND IT THE WAY I EXPLAINED IT TO U!!!!
And I hope u make a 100%