https://www.uiltexas.org/files/academics/White_NS2022SAC.pdf
Do all of this mentally in 10 minutes and see how you'd do on it. It must be so trivial for you.
This is literally a test for teenagers... and the ability to do it super fast isn't even math, it's trivial tricks...
If this is what interests you as a 15 year old, I think that's a fine hobby. If you're much over the age of 20 though...
As if chess is any better. It's a board game.
https://www.uiltexas.org/files/academics/White_NS2022SAC.pdf
Do all of this mentally in 10 minutes and see how you'd do on it. It must be so trivial for you.
This is literally a test for teenagers... and the ability to do it super fast isn't even math, it's trivial tricks...
If this is what interests you as a 15 year old, I think that's a fine hobby. If you're much over the age of 20 though...