I see memorizing the times table as a form of caching. I use it so frequently and it's so 'cheap' to keep this information in my head that any kind of calculati

I see memorizing the times table as a form of caching. I use it so frequently and it's so 'cheap' to keep this information in my head that any kind of calculation just isn't worth it. Plus, it's pretty easy to combine this information to multiply above 12.