Language name and location: Japanese, Japan, Guam, Palau [Refer to Ethnologue]
语言名称和分布地区: 日本语, 日本, 关岛, 帕劳, 北马里亚纳群岛等国家及地区

1. ichi [itɕi]/ hitotsu [çitotsɯ]

21.  nijuuichi /  hatachi amari hitotsu

2. ni [ɲi] / futatsu [ɸɯtɑtsɯ]

22.  nijuuni /  hatachi amari futatsu

3. san [saɴ] /mittsu [mitːsɯ]

23.  nijuusan /  hatachi amari mittsu

4. shi [ɕi] / yottsu [jotːsɯ]

24.  nijuushi /  hatachi amari yottsu

5. ɡo [ɡo] / itsutsu [itsɯtsɯ]

25.  nijuuɡo /  hatachi amari itsutsu

6. roku [ɾokɯ] / muttsu [mɯtːsɯ]

26.  nijuuroku /  hatachi amari muttsu

7. shichi [ɕitɕi] / nanatsu [nɑnɑtsɯ]

27.  nijuushichi /  hatachi amari nanatsu

8. hachi [hɑtɕi]/ yattsu [jɑtːsɯ]

28.  nijuuhachi /  hatachi amari yattsu

9. kyuu [kʲɯː] /kokonotsu [kokonotsɯ]

29.  nijuuku /  hatachi amari kokonotsu

10. juu [dʑɯː] /too [toː]

30.  sanjuu [saɴdʑɯː] / misoji [misodʑi]

11. juuichi / too amari hitotsu  ***

40.  yonjuu [joɴdʑɯː] / yosoji [josodʑi]

12. juuni  / too amari futatsu

50.  ɡojuu [ɡodʑɯː]  / isoji [isodʑi]

13. juusan  / too amari mittsu

60.  rokujuu [ɾokɯdʑɯː]/musoji [mɯsodʑi]

14. juushi  / too amari yottsu

70.  nanajuu [nɑnɑdʑɯː]/nanasoji

15. juuɡo  / too amari itsutsu

80.  hachijuu [hɑtɕidʑɯː] /yasoji [jɑsodʑi]

16. juuroku  / too amari muttsu

90.  kyuujuu [kʲɯːdʑɯː] /kokonosoji

17. juushichi  / too amari nanatsu

100. hyaku [çɑkɯ] /momo [momo]

18. juuhachi  / too amari yattsu

200. nihyaku [ɲiçɑkɯ] / futao [ɸɯtɑo]

19. juukyuu  / too amari kokonotsu

1000. sen [seɴ] / chi [tɕi]

20.nijuu [ɲidʑɯː] / hatachi [hɑtɑtɕi]

2000. nisen [niseɴ] / futachi [ɸɯtɑtɕi]

Linguist providing data and dateː Dr. Atsuhiko Kato, Osaka University of Foreign Studies, Osaka, Japan, March 30, 2007.
提供资料的语言学家: 加藤昌彦博士（日本大阪外国语大学 ), 2007 年 3 月 30 日

Other comments: Japanese has two sets of numeral systems, the first set is called Sino-Japanese numerals ( on the first column), which is used for counting things quickly without using a numeral classifiers,  the second set is native Japanese numerals, the native numerals up to 10 are used very often, especially by children to count things, but the forms over 10 are archaic, and few Japanese ever know them with the exception of the form for 20 ( and sometimes 30, 40, 50 etc.) which is used for refereeing to someone's age.