8 of them.
Eight eights are una whole
Eight one eights make a whole.
8
8
16
8
Eight eights constitute a whole.
eight eghts make a whole
There are zero eights in 3 and a half. The number 3.5 is less than 8, so it cannot contain any whole eights.
Eight sevenths of them.
Eight eighths make up a whole unit.
8/8 = 1 whole