Brain Game: Math Square #111
As has become custom on Monday, today's mentalfloss.com Brain Game is a new Monday Math Square. NOTE: We're actively working on ways to make the Math Square (and other Brain Game puzzles) interactive so that you can solve them on-screen. We'll keep you posted on the results. Good luck with today's puzzle!
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.