Learn Abacus at Home: Learning the abacus is an important step in a child’s development. It is a fantastic way to improve mental math skills, concentration, and overall cognitive abilities. In this ...

こんにちは！「100日後にそろばん完全マスター！」の主です。 Youtube98日目の動画「暗算1級 練習問題1 お手本（指ありver.）」の内容を簡単に解説します。 ちなみに、日本珠算連盟の検定試験に対応できるように、代表的な朝日プリントを使って解説しています ...

In today's fast-paced world, parents are constantly looking for ways to give their children an edge, especially when it comes to developing strong mental abilities. Two popular methods, Abacus ...

こんにちは！「100日後にそろばん完全マスター！」の主です。 Youtube99日目の動画「暗算1級 練習問題1 お手本（指なしver.）」の内容を簡単に解説します。 ちなみに、日本珠算連盟の検定試験に対応できるように、代表的な朝日プリントを使って解説しています ...

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our ...

Ever dreamt of solving math problems in your head with the speed of a calculator? Mental math might seem challenging, but it's a skill attainable through the right tools and techniques. The abacus, an ...