Math puzzle free

This puzzle is for math lovers.
The idea of the puzzle is very simple! Arrange the numbers from 1 to 9 in a 3x3 square such that numbers in each row, each column and the diagonal add up to give the number provided at the end of each row,column and the diagonal. Repetition of numbers is allowed .Welcome you on to this magic world of number square puzzle!!! Have fun!
it helps you to increase your calculation speed. try this..