Today’s puzzle is a magic square! These are really fun: the sum of every column, row, and diagonal must be the same.

In the square below, it’s possible to figure out this common sum without too much trouble. However, these can get much trickier. The trickiest ones require some algebra!

And here’s a solution to the puzzle:

Click on the picture to open a pdf of the puzzle for printing.

Here’s the solution to the magic square with the missing numbers filled in in red: