This tip might help some people. I had difficulty learning the times-tables and addition of larger numbers. Then I was given a dart board for my birthday and I quickly learned multiplication by threes and addition of the dart board numbers and tallying of my scores. It wasn't that big a step to learn the rest of the times-tables. The rules and scoring of darts can be easily changed in order to make learning all of the times-tables fun.
Nowadays there are harmless Velcro dart board games that younger children can play. I still have guilty feelings about the time I threw a dart 'near' my sister and it landed in her leg.
Hope this helps someone.
Hi Fred Smith;
Welcome to the forum Fred.
In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.
Welcome To the Forum. Fred
Welcome to the forum!
(By the way, I think I am going to make an account soon, but I don't know yet...)