These are puzzles to help reinforce double-digit addition. There are three sets of five puzzles: addition without regrouping, addition with regrouping, and a set that has problems with and without regrouping.
The four boxes show the equation, the equation in expanded form, the equation modeled with base 10 blocks, and the sum.
When the kids put the puzzles together, they will notice a picture in the center of the puzzle. This allows these to be self-checking. Each set has a different themed picture in the middle of the puzzle.
I hope you and your class will enjoy these puzzles!
**Note: This is part of my Math Puzzle Bundle