How do I learn maths?

I forgot maths. I did maths for my GCSEs and A-levels, but I did bad and I want to learn maths.

Is there any book that will teach me maths? I keep coming across books by K.A. Stroud. Are they good? Should I get those?

Keep in mind this is British maths, not American math, so if there are any differences, I would prefer the British version.

>>51
Look, it's much much older.

>>53
I'm sorry man. Truly sorry. I called you Ahmed. I wished you were a Muslim. I see you're not. You're a disrespectful person. You've got a criminal mind. I won't call you a Muslim any more.

>>53
I guess you're not even married. Have a good look at what you wrote on Salman's wife.
If a pigeon shits on your shoulder, next time you walk, don't ask. Karma is a bitch.