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赵鑫 2022-08-12 15:51:51 +08:00
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# 十进制
> 十进制是以10为底数的数字系统，是在世界上应用最广泛的进位制。
## 十进位制
> **十进位制**指的是有位值的十进制
| n | $10^n$ | n | $10^n$ | n | $10^n$ | n | $10^n$ |
| --- | ------ | --- | ------ | --- | ------- | --- | ------ |
| 0 | 个 | 6 | 百万 | 12 | 兆/万亿 | 18 | 百京 |
| 1 | 十 | 7 | 千万 | 13 | 十兆 | 19 | 千京 |
| 2 | 百 | 8 | 亿 | 14 | 百兆 | 20 | 垓 |
| 3 | 千 | 9 | 十亿 | 15 | 千兆 | 21 | 十垓 |
| 4 | 万 | 10 | 百亿 | 16 | 京 | 22 | 百垓 |
| 5 | 十万 | 11 | 千亿 | 17 | 十京 | 23 | 千垓 |
读法举例： $12,3456,7809$ 读做*十二亿三千四百五十六万七千八百零九*