がいすう　算数計算「がいすうくん」 vs AroundPrefecture

概数(がいすう)の算数計算トレーニングのアプリです。概数と言うと難しく聞こえますが、要は「およその数」で、「切り捨て、切り上げ、四捨五入」の３パターンを学習します。単に四捨五入できるだけでなく、「和・差・積・商」の四則演算による四捨五入が出来るようになるのが本アプリの目標です。概数は小学生で初めて習いますが、中高生になると、「有効数字」として再び登場します。苦手な人も多いと思います。大学受験などで必要になり、有効数字の理解は大変重要になります。ぜひ、このアプリで「がいすう計算」をマスターしましょう。

Guess the prefecture in Japan. The question shows the surrounding prefectures. Question: Fukui, Mie, Gifu, Kyoto Answer: Shiga This app will give you a better understanding of the prefecture's location. It is especially for those - who can indicate which prefecture is on the map when told the name of a prefecture - who can say what prefecture it is when pointed to on the map Compared to simple problems, guessing from the surrounding prefectures requires a solid understanding of their locations. It requires new thinking. It is assumed that you will not look at the choices until you find it. Challenge yourself to eliminate the candidates correctly by looking at the prefectures in question. Reading out the questions makes for a fun game recommended for large groups.