Trying to be a ham

I think it's still 35 questions. You have to pass tech to get general, so if you don't pass general you still have tech. The club will ask you if you want to take the general after tech. It costs nothing more to take both at the same session. Some of the general questions deal with stuff you see on the tech test, but it goes beyond that a bit.
There's nothing wrong with only passing tech. Once you get licensed and putting what you've learned into practice you'll probably find that your appetite for knowledge increases like crazy and the things you learned start to be easier to understand. Many consider a ticket as a license to learn.
There are a couple things dealing with simple math. You'll see a couple numbers you'll need as you study so memorize/practice using those numbers and take some blank paper to use for that.