That algebra-1 you learned will be used on algebra-2, which will take you higher level, ultimately where you will do complex stuffs like calculus.. now you want to know where you apply those in life? Ultimately those stupid maths will guide you to write complicated programs which could even build something better than Microsoft, Google, Facebook etc.. or you could even come up with something greater than Newton or Einstein

Now the problem is not just in Nepal but mostly everywhere around the world.. I had many of those teachers who would treat me like a livestock and would do whatever it takes only to produce better "marks" at the exam. Well by that way I wont be able to understand much or gain creative skills, its just I have to read and read until I memorize and could fabricate the textbook on the exam script. Well thats how most education system works especially in Asian countries.

But then again, if you plan to go to any awesome University, not just Nepal but somewhere in a very developed country, they will ask for your marks sheet, not just on your creativity skills.

As for the final part, why those who can write their names are also counted as literate, well this is because by this way your country can get funds from international organizations and NGOs which are necessary to build better schools and institutes.

And if you have more confusions, I'm here to answer you.