Units

1 ichi
2 ni
3 san
4 yon/shi
5 go
6 rokku
7 nana
8 hachi
9 kyu

Teens

jyuichi
jyuni
jyusan
jyuyon
jyugo
jyurokku
jyunana
jyuhachi
jyukyu

Tens

jyu
nijyu
sanjyu
yonjyu
gojyu
rokkujyu
nanajyu
hachijyu
kyujyu

100's

hyaku
nihyaku
sambyaku
yonhyaku
gohyaku
roppyaku
nanahyaku
happyaku
kyuhyaku

1000's

sen
nisen
sanzen
yonsen
gosen
roppsen
nanasen
hassen
kyusen