When you multiply a 3-digit number by a 1-digit number, the best way to do this without a calculator is to use short multiplication. This is how you would use short multiplication to find out the ...
こんにちは!「100日後にそろばん完全マスター!」の主です。 Youtube66日目の動画「暗算3級 3桁×1桁のかけ暗算のやり方」の内容を簡単に解説します。 Hello! This is the host of "Abacus Master in 100 Days." ...