It's not just the memorization that bothers me, but the belief that there is only one way to do math. I've been in many arguments with parents before that their

It's not just the memorization that bothers me, but the belief that there is only one way to do math. I've been in many arguments with parents before that their (and my) kids should learn many algorithms for even the most basic things. Do subtraction by complements sometime, rather than the standard algorithm. Playing with numbers is way more fun than repeating the computations.