Language name and locationː Afan Oromo, Oromia Reg., Ethiopia [Ref to Ethnologue]

语言名称和分布地区: 阿凡-奥罗莫语 (中西部-奥罗莫语), 埃塞俄比亚西南部各族民族州

1. tokko

21.  diddami tokko

2. lama

22.  diddami lama

3. sadii

23.  diddami sadii

4. afur

24.  diddami afur

5. ʃan

25.  diddami ʃan

6. dʒaʔa

26.  diddami dʒaʔa

7. torba

27.  diddami torba

8. saddeet

28.  diddami saddeet

9. saɡal

29.  diddami saɡal

10. kuɗan

30.  soddoma

11. kuɗa tokko

40.  afurtama

12. kuɗa lama

50.  ʃantama

13. kuɗa sadi

60.  dʒaatama

14. kuɗa afur

70.  torbaatama

15. kuɗa ʃan

80.  saddeetama

16. kuɗa dʒaʔa

90.  saɡaltama

17. kuɗa torba

100. ɗibba, 200. ɗibba lama

18. kuɗa saddeet

400. afur lama, 800. saddeet lama

19. kuɗa saɡalī

1000. kuma

20. diddama

2000. kuma lama

Other comments: Afan Oromo or West Central Oromo has a decimal system. 

Afan Oromo is not a tonal language. (of course, there are researchers who argue it is tonal with lexical function). I personally do not agree to their arguments. Therefore, marking for tone is not needed. I have attached here for you the numeral system from the variety I speak (Mecha Dialect). 

Language name and locationː West Central Oromo, Ethiopia [Refer to Ethnologue]

语言名称和分布地区:  西中部奥罗莫语, 埃塞俄比亚西南部各族民族州

1. tokko

21.  diɡdamii tokko

2. lama

22.  diɡdamii lama

3. sadii

23.  diɡdamii sadii

4. afur

24.  diɡdamii afur

5. ʃani

25.  diɡdamii ʃan

6. jaha

26.  diɡdamii jaha

7. tolba

27.  diɡdamii tolba

8. saddet

28.  diɡdamii saddet

9. saɡal

29.  diɡdamii saɡal

10. kuɗan

30.  soddoma

11. kuɗan tokkō

40.  afurtama

12. kuɗan lamā

50.  ʃantama

13. kuɗan sadi

60.  jahatama

14. kuɗan afur

70.  tolbatama

15. kuɗan ʃani

80.  saddetama

16. kuɗan jaha

90.  saɡaltama

17. kuɗan tolbā

100. ɗibba tokko

18. kuɗan saddet

200. ɗibba lama

19. kuɗan saɡali

1000. kuma

20. diɡdama

2000. kuma lama

Linguist providing data and dateː Dr. Tolemariam Fufa, Netherlands, June 18, 2007.

提供资料的语言学家: Dr. Tolemariam Fufa, 2007 年 6 月 18 日.

Other comments: West Central Oromo has a decimal system. Oromo is a Cushitic language spoken predominantly by the Oromo people and neighboring ethnic groups in the Horn of Africa. It is used as a lingua franca particularly in Ethiopia and northeastern Kenya. With more than 36 million speakers making up 33.8% of the total Ethiopian population。 Oromo has the largest number of native speakers in Ethiopia, and ranks as the second most widely spoken language in Ethiopia by total number of speakers  following Amharic. Forms of Oromo are spoken as a first language by an additional half-million people in parts of northern and eastern Kenya.  Oromo serves as one of the official working languages of Ethiopia and is also the working language of several of the states within the Ethiopian federal system including Oromia, Harari and Dire Dawa regional states and of the Oromia Zone in the Amhara Region.