Students are sure to be motivated by these robot-themed charts and activities! They can be used as review, in math centers, whole class, and/or homework. Included are 30, 50, 100, and 120 charts, blank and filled. I provide lots of practice with missing numbers, before, after, +1, -1, +10, -10 as puzzle pieces are completed, and cut/pasted to the charts. The puzzles work well as “self-checking” activities when pasted to the filled charts! If you want to use puzzles as non-consumables, copy both the blank charts and their corresponding filled chart on card stock, laminate/cut the filled one in different “chunks”and place in centers for students to put together. If some students need more challenging work, the puzzle pieces that are filled and cut can be pasted onto a blank chart instead of a filled one. Each number chart has a Mystery Picture to be solved by following the directions, and coloring the number squares in the appropriate color. Enjoy!