This worksheet contains 6 problems adding and subtracting mixed numbers with unlike denominators. Each problem shows 1-2 steps used to solve the problem and each problem contains an error. These errors were ones that I've seen 5th graders make in adding/subtracting mixed numbers.
Students must identify and name the error and then solve the problem correctly. This resource contains 3 different types of errors. It can be used as an early-finisher task, in class as a worksheet, as homework or as part of stations.