multiplication tables have some wonderful and quite surprising patterns. this is one of them. draw any rectangle in a multiplication table and you will find that the products of opposite corners are equal. for example a rectangle around a full 12 by 12 table will be 1144 and 1212. try it, is it always true? why? you know that if you could just get people to take it, they’d be healthier and more successful. but no matter how hard you try, many people can’t be convinced to swallow vitamins. they don’t taste good, and they’re not fun to take. 