Brain Game: Math Square #86
If you're not yet bright-eyed and bushy-tailed today, jump start your noggin with today's mentalfloss.com Brain Game: a brand-new Monday Math Square. Good luck!
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.