Language name and locationː Yakaikeke, Papua New Guinea [Refer to Ethnologue]
语言名称和分布地区: 雅凯科科语, 巴布亚新几内亚米尔内湾省

1. taɡo

2. ruwa 

3. tonu

4. tonu ma taɡo (3 + 1)

5. tonu ma tonu (3 + 2)

10. nima rua (litː 'two hands' )

Linguist providing data and dateː Dr. Russ Cooper and Mrs. Mary Cooper, SIL International, Papua New Guinea. January 7, 2009.
提供资料的语言学家: Dr. Russ Cooper and Mrs. Mary Cooper. 2009 年 1 月 7 日.

Other comments: Yakaikeke has a traditional binary counting system. Now most of the people preference is to use English numbers. The simple numbers 1, 2, 10 may still be used now. Yakaikeke (Iakaikeke) is an endangered Oceanic Austronesian language of Milne Bay Province, Papua New Guinea spoken by about 100 speakers.