To make approximations is made by excess or default. Intends to reach the nearest closed or exact number, in such a way that if the fraction is greater than five point ( 0. 5 ) Gets the note or average and is called excess. On the contrary, if the fraction is less than five point ( 0. 5 ) He gets by default. It is lower the note when the fraction of the average is less than 0, 5. It is made to avoid giving annotations or averages to many decimal places. Detriment.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list
