138 IRISH
aon duine déag “eleven people”, sé dhuine dhéag “sixteen
people”.
In counting animals and things the use of cinn, mentioned
on p. 73, is common: trí cinn de bhuaibh “three cows”,
cúig cinn déag ar fhichid de mhucaibh “thirty-five pigs”,
ocht nó naoi gcinn de leabhraibh “eight or nine books”.
Ordinal Numbers
These are the forms corresponding to English “first,
second, third”, etc. The Irish for “first” is céad, which
aspirates a following noun and is itself aspirated by the
article: an chéad fhear “the first man”; “second” is dara:
an dara fear. The other ordinals are formed by adding -ú
to the simple numeral: triú, ceathrú, cúigiú, séú, etc. For
“eleventh” the word is aonú . . .déag; an fichiú ceann “the
twentieth (one)”. The higher ordinal numbers should be
avoided. We cannot propose a satisfactory form for “the
two hundredth” (an dá chéadú?), “the five hundred and
sixtieth”, etc., but these forms are clumsy in any language.
Addition and Subtraction
Addition is expressed as follows: a cúig agus a cúig, sin a
deich, 5 + 5 = 10; deich fichead agus fiche, sin leath-chéad,
30 + 20 = 50.
For subtraction: a cúig óna deich, sin a cúig, 10 — 5 = 5;
a deich óna daichead, sin a deich fichead, 40 — 10 = 30.
Multiplication and Division.
Multiplication is expressed by putting fé “under” before
the multiplier: a dó fé thrí, sin a sé, 2 × 3 = 6; a deich fé
chúig, sin deich is daichead, 10 × 5 = 50.
Division is expressed by putting a roinnt ar (“to divide
by”) before the divider: fiche a roinnt ar dhó, sin a deich,
20 ÷ 2 = 10.