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.

大多数语言都有数字系统，这些系统可能会有很大差异。向下滚动以发现和学习来自世界各地的有趣数字系统。

71
[setenta e um]

72
[setenta e dois]

73
[setenta e três]

74
[setenta e quatro]

75
[setenta e cinco]

76
[setenta e seis]

77
[setenta e sete]

78
[setenta e oito]

79
[setenta e nove]

80
[oitenta]