As has become the custom here at the mentalfloss.com **Brain Game,** we open the work week with a new *Monday Math Square. *Enjoy!

**Place the digits 1 through 9 in the white blanks so that the mathematical equations work both across and down. Each digit 1 through 9 should appear only once in the main grid (the red square).**

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**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 your numbers with us in the comments).

**THE SOLUTION:**

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