Any technique to fill sudoku easily?

Question

Any technique to fill sudoku easily?

Answer 1

Take a column.

Count from 1,2...9

Check the number is there either inthe row, column or in the 3X3 matrix...Most probably one number will be missing and that is the answer to that coloumn

Answer 2

looking up by left to right, up to down

in a column form.. then you can answer it by row

Answer 3

i usually do line by line and it is very useful, easy and quick