Practice adding and subtracting while having fun! This packet of 7 games is perfect for math centers or pair work. Two neighboring squares add to total the number above them, but some of the higher numbers are missing. The first of these puzzles is available for free on my TpT page, but in this version it's followed by three additional puzzles in the same format. The last three pages feature three puzzles per page for an extra challenge! Zero is included in several versions. Answer sheets included. Please note that this is a Power Point presentation, but just print and use!