Check out this awesome worksheet that pushes students to identify common errors in addition problems. There are 10 problems in all. With a clear set of directions included, students will go through the problems, identify the problem, fix it, and describe the error that was found. This is a great way to push students to identify their own problems as well as learn about common mistakes. Highly aligned to critical thinking found in Common Core, this is a great worksheet to improve students reaching their maximum potential. An answer key has been included for your convenience.