ふつうのかき方（たとえば 1234）を，1000＋200＋30＋4 のように分けたり，そのぎゃくをしたりできるよ．アニメのマシンでこたえを たしかめよう！
- Resource Type
-
Activity
- Tags
-
numbers
- Target Group (Age)
- 8 – 19+
- Language
- Japanese / 日本語
Error
A timeout occurred. Trying to re-save …
Sorry, but the server is not responding. Please wait a few minutes and then try to save again.
