4, Lesson 5, Unit 5, Grade 7, OpenUp icon
Instructional Activity

We Can Add Instead

Lesson 5. Unit 5. Grade 7 Open Up Resources

Open Up Resources15 min(s)

This Instructional Activity is a part of the Lesson 5, Unit 5, Grade 7. In this activity, students begin to see that subtracting a signed number is equivalent to adding its opposite. First, students match expressions and number line diagrams. Then they add and subtract numbers to see that subtracting a number is the same as adding its opposite.

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