This is a great product for practice three addends addition. There are four sets of task cards to practce this with. 2 sets have answers that are under 15, and the other 2 sets are over 15. 2 sets are writen horizontal, and the other 2 are vertical. These are great for homework, practice, centers, or you could play SCOT, with them as well. They are black and white so they are perfect for printing.