Time management is most important in any competitive exam. So, we need to calculate mathematical problems in less time. Here we are providing some tips to calculate typical problems in simple method to take less time. By using tip we can find any two digit number square in 3 to 5 seconds time duration.
Here we explained with an example to calculate square of any 2 digit number:
Step 1: Unit Digit Square = 42 = 16
Step 2: Multiply all numbers in problem = 3 x 4 x 2 = 14