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Home > CC1 > Chapter 3 > Lesson 3.2.2 > Problem 3-108

3-108.

In parts (a) and (b) below, copy the vertical number lines and use them to show the solution to the problems. Homework Help ✎

  1. 5 − 2 pic

    3

  1. 2 + 1

  1. StoplightShow how to find the answer to −3 + 4 − 1 on a number line.

  • See parts (a) and (b) for help.

  1. Rachel said that −4 −3 ends up being positive because two negatives always give a positive. Draw the problem on a number line, and then explain whether you agree or disagree with Rachel.

−1 + (−2) = −3
−7 + (−4) = −11
Do two negatives always make a positive?