>Be me 19 year old
>Fresh out of high school entering universite
>Need to do a nivelation activities
>I barely know how to multiply
>I understand the explanation but I can't put it in practice, it makes sense seen it but I can't resolve the problem

I'm horrible in math, what programs should I use to teach me with step by step how to resolve the excersice, I don't want the plain answer, I need to do an exam by own

And other program/app to give to my profesor the answers in a txt form instead of doing it in paper and sending him photos