Ordinal Number/Pair/Per/Percent
ORDINAL NUMBERA number which indicates the order place of a member of a set in relation to other members of the same set. Example: 1st, 2nd, 3rd. . .
PAIR Two persons, animals, or things that are alike/ that go together. Example: A pair of gloves
PER For each. Similar and are matched to go together. Example: eggs per dozen
PERCENTRatio with 100 as its second number. Percent means per hundred. Example: % = /100