See more ideas about - zcmn.osteriamontecanale.it All the math centers can be printed for in-person learning, or use the digital version with Google Slides, SeeSaw, or Powerpoint to assign them digitally. 2 and 3 digit addition and subtraction (with and without regrouping) And so much more! Check out our list of activities below to see how to use some of these centers in your 1st or 2nd grade ...