How Do Multiplication Facts Work?

Children find subtraction significantly more easy when they've imbedded that. Once you know those multiplication facts by heart, then you can derive the related division facts relatively easily. How i learned them. I got to year six not knowing basically any of them. And my hd a teacher called mister deacon, who was just stunned by this fact. He made me write fill out a multiplication grid,. so one that literally had one tpepor, fiveti, seven, eight, nine, ten across the top, and then a random distribution and one to ten down the side. And after a few momths, i could just fill it out  and i learned my division