Mathematical Crossword Home Mathematical Crossword 0.0 / 5 ( 0 votes ) Your Rating? Discover Mathematical Crossword – Play Free Now on GamePrimary! Mathematical Crossword is a super math puzzle game. You can choose the difficulty and turn on or off arithmetic symbols as you wish. Also in this mode, after each completed crossword puzzle, the difficulty will gradually increase. Use your math puzzle to solve levels. Have fun. Categories in which Mathematical Crossword is included: Soccer Sports Ball