These are great for drill and math practice of basic math facts. Each puzzle set contains 10 individual puzzles. Each six-inch puzzle is two-sided. One side contains basic math facts. The other side has a photograph. Each puzzle has its own clear plastic tray.
The math facts are solved in the bottom tray (the answer pieces are all the same shape). The lid is closed and the puzzle is turned over. if the photo is jumbled, the math facts have not been completed correctly.