1. Numbers

ichi-system hitotsu-system
1ichi
2ni
3san
4shi, yon
5go
6roku
7shichi, nana
8hachi
9kyuu, ku
10juu
1hitotsu
2futatsu
3mittsu
4yottsu
5itsutsu
6muttsu
7nanatsu
8yattsu
9kokonotsu
10too
Two number systems

There are two numerical systems in the Japanese language.
The ichi, ni, san-system and the hitotsu, futatsu, mittsu-system here.
The ichi, ni, san-system is combined with counters. (See Chapter 2)
The hitotsu, futatsu, mittsu-system is used independently without.
The hitotsu, futatsu, mittsu-system goes as far as 10.
Number from 10 to 90,000
10 juu 100 hyaku
20ni-juu200ni-hyaku
30san-juu300san-byaku
40yon-juu400yon-hyaku
50go-juu500go-hyaku
60roku-juu600roppyaku
70nana-juu700nana-hyaku
80hachi-juu800happyaku
90kyuu-juu900kyuu-hyaku
1,000 sen 10,000 ichi-man
2,000ni-sen20,000ni-man
3,000san-zen30,000san-man
4,000yon-sen40,000yon-man
5,000go-sen50,000go-man
6,000roku-sen60,000roku-man
7,000nana-sen70,000nana-man
8,000hassen80,000hachi-man
9,000kyuu-sen90,000kyuu-man
Number from 1 to 1,000,000,000,000,000
1ichi
10juu
100hyaku
1,000sen
10,000ichi-man
100,000juu-man
1,000,000hyaku-man
10,000,000issen-man
100,000,000ichi-oku
1,000,000,000juu-oku
10,000,000,000hyaku-oku
100,000,000,000issen-oku
1,000,000,000,000icchoo
10,000,000,000,000jucchoo
100,000,000,000,000hyaku-choo
1,000,000,000,000,000sen-choo