The mentalfloss.com **Brain Game **is back to kick off this week with a new *Monday Math Square*. Enjoy!

**The nine white squares inside the main red grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid (the red square). Place the digits 1 through 9 in their correct spots so that the mathematical equations work both across and down.**

**NOTE: **These puzzles rarely (but occasionally) have alternate solutions that fit the rules. If you find one of these, **first make sure that you've followed the instructions to the letter, **then pat yourself on the back (and feel free to share it with us in the comments).

**THE SOLUTION:**