Brain Game: Math Square #88
The mentalfloss.com Brain Game offers a new entry in our longest-running weekly feature: the 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.