This is a fun little set of place value puzzles that would make a great math station! With this set, students will match the various forms (standard, base ten, expanded, and word forms) to create a four piece puzzle showing all of the different forms of a four digit number. Included in the set are ten sets of puzzle pieces for a total of forty pieces when cut apart. To make these self checking, simply print out and write a symbol or letter on the each piece of each individual puzzle. For example, on the first page, I would write the letter A on all four pieces that go to the puzzle.