This complete math unit for adding multiple addends includes assessments, editable lesson plans, math teaching resources, worksheets, and math centers. The unit covers 10 days and includes the following:
*editable lesson plans
*printable teaching resources
*10 + worksheets
* 4 math centers with directions for teacher and student
In this math unit students will learn how to use the commutative and associative properties to add problems with 3 addends.