Unit 2, Lesson 10# Understanding Multiplication of Integers

EngageNY 45 min(s)

Students explain that multiplying by a positive integer is repeated addition and that adding a number multiple times has the same effect as removing the opposite value the same number of times (e.g., 5 × 3 = (−5) × (−3) and 5 × (−3) = (−5) × 3). Instruct students to record the values of their cards on the images.