My poor Mathametics

+,-,×,÷ = These are the only signs that I can catch. Upper level Maths are like strict no for me. I am Unable to understand critical mathematics of higher level. Number arrange from big to small, small to big makes me comfortable. Geometry drawing as Sompadyo and Graph are easy to me. UPOPADYO makes buffled. Arithmetic and Algebra is rarely done by me. Only one question rises in my mind that where does they come from? What should we prove? And which answer is correct? These things puzzle me since childhood days of school.