ime?_ as, /singuli:\, _one at a time_.

_328._ The Cardinal Numerals. The first twenty of the cardinals are as
follows:

1, u:nus 6, sex 11, u:ndecim 16, se:decim
2, duo 7, septem 12, duodecim 17, septendecim
3, tre:s 8, octo: 13, tredecim 18, duode:vi:ginti:
4, quattuor 9, novem 14, quattuordecim 19, u:nde:vi:ginti:
5, qui:nque 10, decem 15, qui:ndecim 20, vi:ginti:

_a._ Learn also /centum\ = 100, /ducenti:\ = 200, /mi:lle\ = 1000.

_329._ Declension of the Cardinals. Of the cardinals only /u:nus\,
/duo\, /tre:s\, the hundreds above one hundred, and /mi:lle\ used as a
noun, are declinable.

_a._ /u:nus\ is one of the nine irregular adjectives, and is
declined like /nu:llus\ (cf. Secs. 109, 470). The plural of /u:nus\
is used to agree with a plural noun of a singular meaning, as, /u:na
castra\, _one camp_; and with other nouns in the sense of _only_,
as, /Galli u:ni\, _only the Gauls_.

_b._ Learn the declension of /duo\, _two_; /tre:s\, _three_; and
/mi:lle\, _a thousand_. (Sec. 479.)

_c._ The hundreds above one hundred are declined like the plural of
/bonus\; as,

ducenti:, -ae, -a
ducento:rum, -a:rum, -o:rum
etc. etc. etc.

_330._ We have already become familiar with sentences like the
following:

Omnium avium aquila est velocissima
_Of all birds the eagle is the swiftest_
Hoc oraculum erat omnium clarissimum
_This oracle was the most famous of all_

In such sentences the genitive denotes the whole, and the word it
modifies denotes a part of that whole. Such a genitive, denoting the
whole of which a part is taken, is called a /partitive genitive\.

_331._ RULE. Partitive Genitive. _Words denoting a part are often used
with the genitive of the whole, known as the /partitive genitive\._

_a._ Words denoting a part are especially pronouns, numerals, and
other adjectives. But cardinal numbers excepting /mille\ regularly
take the ablative with /ex\ or /de\ instead of the partitive
genitive.

_b._ /Mille\, _a thousand_, in the singular is usually an
indeclinable adjective (as, /mille milites\, _a thousand soldiers_),
but in the plural it is a declinable noun and takes the partitive
genitive (as, /decem milia militum\, _ten thousand soldiers_).

EXAMPLES:

Fortissimi horum sunt Germani
_The bravest o