For Pc - Use your mouse to click o ay of the available umbers. Oce selected, click o a empty spot i the puzzle to place the umber there. For Mobile - Drag the umber from the available list ad drop it ito the empty space.

Math Riddles level up your IQ with a mix of logical puzzles. Challenge yourself with different levels of math games and stretch the limits of your mind. Brain games are prepared with an approach of an IQ test.

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL