Thanks again for the elaboration. I'm getting what you say, and that was sort of why I referred to learning multiplication tables by rote, above. It's pretty l

Thanks again for the elaboration. I'm getting what you say, and that was sort of why I referred to learning multiplication tables by rote, above. It's pretty late for me, so I will read and reply to your and @lorenzhs's (thanks to you too) comments again tomorrow, if I have anything further to say or ask. Good stuff.