"Learning Tips and Tricks on How to Solve Math Competition Problems"

Correction:

Hindi ko po na flash ung final answer: Regarding po kanina sa 2+4+6+….+50, find the sum? The Final answer is 650. add the first and last number, 2+50=52. Next 52×25=1300, because there are 25 terms. Last is divided by 2 equals 650.