how fast can you multiply 21 times 13? one minute probably how about 123 times 321? more than one for sure. Well a japanese child can do it in no time. Even a five year old,they dont learn numbers by heart instead they,draw and play.
how fast can you multiply 21 times 13? one minute probably how about 123 times 321? more than one for sure. Well a japanese child can do it in no time. Even a five year old,they dont learn numbers by heart instead they,draw and play.
