Show your work

So 2.0 calls me up and he's telling me about school and complaining about how his math teacher makes him do the problems the long way and show his work. I say "okay, give me an example" and he shoots out 18 x 12. And I go "okay, so what is 18 x 12?" and he comes back after about a minute with 192. It's not, it's 216, did that shit in my head.....And that's why we make you show your work kids. That's why we make you show your work.