I don't know what it's called in english, or if it's even a thing in any other country but the NL, but calculating.
It's not mathematics, but a class in just stuff like 37 multiplied by 78, and 13.4 divided by 6, and stuff like that to train you calculate stuff faster.
I hate doing it, because I have this thing called a calculator that does it for me. Only in the event of an emergency I'm off perfectly fine without one, it just takes me a lot longer to do it...
What was the first ever time you fell in love, and how did it end?