Mind Games: Math Crosswords

1. Fill the empty spaces with numbers so every equation is correct.
2. Start with the equations that have only one unknown.
3. Use a hint if you get stuck.
4. Finish the level by making all the equations right.

Mind Games: Math Crosswords wraps number puzzles in a small science-fiction story. Aliens have destroyed the planet's plants, and engineers have built ships that turn brain activity into energy for new growth — so every puzzle you solve helps bring the planet back to life. Each level is a grid of equations running across and down, with some numbers missing. Fill in the empty spaces so that every equation is correct, starting with the ones that have only a single unknown. Hints are there if you get stuck, and the level is won once all the equations check out.