This Problem Set is a part of the Lesson 10, Unit 2, Grade 7. 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. Instruct students to record the values of their cards on the images.
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Instructional ActivityExample 1: Product of a Positive Integer and a Negative Integer
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Instructional ActivityExample 2: Product of a Negative Integer and a Positive Integer
5 min(s)