Using Properties of Numbers to Reason about Multiplication

This Instructional Activity is a part of the Lesson 6, Unit 5, Grade 6. Invite a couple of students to summarize the two different methods used in this activity. Poll the class to see which method they used in the second question. Ask if they preferred one method over the other and, if so, which one and why. It is important students understand that the two methods presented here are mathematically equivalent.