This is a set of 6 addition puzzle squares. The first 3 pages contain puzzles where the students have to add 3 numbers going accross, down or diagonally and then write the sum on the outside square. The next 3 pages contain puzzles where the sums are written down, but most of the other numbers are missing. So the students have to use their reasoning skills to find the missing numbers.
This is a really fun activity that my students love to work on...and it really helps them practice their addition and subtraction skills.