Puzzle using matches. Division version !
Puzzle using matches. Residue version !
Make correct numerical formulas!
Puzzle using matches. Complicated version 2 !
Move two matches to correct the numerical formula!
Trace the footprints!
Match puzzle of upside-down numerical formula!
Set the stairs and reach to the rooftop door!
Puzzle using matches. Division version!
Puzzle using matches. Fractional number version!
Mathematical puzzle using matches. Complicated ver
Calculate with standing on your hands!
Numerical panel puzzle.
Multiplication puzzle using matches.
Brain exercise by bicycle color.
Let's calculate with the Japanese abacus!
Mathematical puzzle using matches.
