well guys,, now i'll share some tricks for solving math problem that i got when i was a student. learn the tricks to amaze and impress others as you mentally solve tough math problem.
http://dianivb.blogspot.com/
Square number ending in 5
85 x 85 = 7225
Step 1. Multiply the firs digit by the firs digit plus one: 8 x (8+1) = 72
Step 2. Write the number 25 next to the number frop the first step : 7225
25 x 25 = 625
Step 1.......
