数字Most languages have number systems, and these can vary quite a bit. Scroll down to discover and learn interesting number systems from all around the world.

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11
[έντεκα]
[énteka]

[十一]

12
[δώδεκα]
[dṓdeka]

[十二]

13
[δεκατρία]
[dekatría]

[十三]

14
[δεκατέσσερα]
[dekatéssera]

[十四]

15
[δεκαπέντε]
[dekapénte]

[十五]

16
[δεκαέξι]
[dekaéxi]

[十六]

17
[δεκαεπτά]
[dekaeptá]

[十七]

18
[δεκαοκτώ]
[dekaoktṓ]

[十八]

19
[δεκαεννέα]
[dekaennéa]

[十九]

20
[είκοσι]
[eíkosi]

[二十]