Answer:
Bonjour Cocinelle
Explanation:
Rounding to the nearest unit means to find the nearest integer to a given number.
Basically, you have to get rid of the decimal part, if any.
As an immediate corollary, you have that if a number x
is already an integer, then there's no point in rounding it, since the result would be x itself.
Now, let's assume that our number actually has a decimal part, for example
4.687
It might help you to think of this number as
4+0.687
to clearly see that 4.687 lies between
4 and 5
, since it is something (0.687) more than 4 , but still not 5
So, the question is: is our number closer to
4 or to 5? Which, in turn, means to ask: the decimal part that we've added,
0.687 , is nearest to 0 or 1 ?
If it is nearest to 0 , it means that our number is more than 4 , but still nearer to
4
than it is to 5, otherwise it is "far enough" from 4 to be nearer to 5
Since halfway between 0 and 1 is 0.5 , and our decimal part is 0.687>0.5 , we can say that 4.687 is rounded to
5.
Are you too miraculer me too