Hey Super Math Kids! Do you want to impress your friends and teachers with your amazing math skills? Imagine solving tricky multiplication problems in your head, without even needing a pencil or paper ...

It's possible to solve some multiplication problems in your head. But sometimes it can help to use other methods instead. These include using visual aids, such as an array or place counters, or by ...

It's possible to solve some multiplication problems in your head. But sometimes it can help to use other methods instead. These include using visual aids, such as an array or place counters, or by ...

こんにちは！「100日後にそろばん完全マスター！」の主です。 Youtube37日目の動画「暗算6級 2桁×1桁のかけ暗算」の内容を簡単に解説します。 第二章のそろばん10.9級編のかけ算のやり方をマスターしていれば、2桁×1桁のかけ暗算の計算もスムーズにできる ...

こんにちは！「100日後にそろばん完全マスター！」の主です。 第四章のそろばん7級編がついに始まりました！ Youtube31日目の動画「そろばん7級 2桁×2桁のかけ算のやり方」の内容を簡単に解説します。 ちなみに、速く答えを出せる「両落とし」と呼ばれる ...

From grade school onward, complex multiplication has been a headache. But an assistant professor from the University of New South Wales Sydney in Australia has developed a new method for multiplying ...

This article reveals a simple and effective shortcut for multiplying numbers that end in 5. Perfect for students, it breaks down the trick for both single-digit and double-digit numbers ending in 5, ...