下の①〜③に答え、整数のしくみをまとめましょう。
| 1億 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||
| 10億 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||
| 100億 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| 1000億 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 1兆 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| 10兆 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 100兆 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 1000兆 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 千 | 百 | 十 | 一 | 千 | 百 | 十 | 一 | 千 | 百 | 十 | 一 | 千 | 百 | 十 | 一 | |
| 兆 | 億 | 万 | ||||||||||||||