Find the number that makes it all add up.
Number Grid turns everyday arithmetic into quick, satisfying puzzles — read the grid, work out the missing tile and watch every equation fall into place.
Simple to start, hard to put down.
Clean grids and clear rules, so the only thing to think about is the next number.
Puzzles at every level
Start with gentle sums and work up to grids that mix addition, subtraction, multiplication and division.
A puzzle in a minute
Each grid is short enough for a coffee break, and there is always another one waiting.
Calm and distraction-free
Soft colours, readable tiles and nothing in the way of the next equation.