posted by Michelle .
A magic square is a square of numbers with each row, column, and diagonal of the square adding up to the same sum, called the magic sum. Arrange the numbers,
-1,0,1,2,3,4,5,6,and 7 into a magic square. How does the average of these numbers compare with the magic sum?
You just start from any 3 by 3 magic square, e.g.:
2 9 4
7 5 3
6 1 8
If you subtract 2 from each number you get a magic square that contains the numbers ranging from -1 to 7