multiplication of the world (1) 썸네일형 리스트형 Secrets of the 2-second double-digit multiplication method and multiplication in countries around the world hello. This is Kang Tae Gong Mathematics. Today we will look at the secrets of multiplication methods in various countries around the world and the 2-second double-digit multiplication method. It was very refreshing because it was different from the modern multiplication method. And is it just me who seems to like the new one better than the one I'm using now? This may be due to the influence of.. 이전 1 다음
