Can you do the "DIDIT"? Awesome Grid Puzzles for Addition and Subtraction mastery with a multiplication bonus thrown in. Great thinking involved as students try to figure out the number route they need to take in order to succeed. Fantastic for centres and those who love a challenge!!! 20 total games/puzzles with answer keys! The BEST part...There can be multiple ways to solve each puzzle! This has been a HUGE hit with students and teachers.