CPM Homework Banner

Home > CC1MN > 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.

  1. A vertical number line, scaled by ones, from negative 5 to 5.

    A vertical number line, scaled by ones, from negative 5 to 5, showing movement of negative 2, from 5 to 3.

  1. A vertical number line, scaled by ones, from negative 5 to 5.

    A vertical number line, scaled by ones, from negative 5 to 5, showing movement of positive 1, from 2, to 3.

  1. Show how to find the answer to on a number line.

  • See parts (a) and (b) for help.

  1. Rachel said that 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.

  • A number line is divided into 10 equal parts. It has 11 tick marks and labeled as follows: First tick mark is negative 7, eighth tick mark is 0, and eleventh tick mark is 3. It has starting point located at negative 4 moving 3 units to the left to negative 7.



Do two negatives always make a positive?

© 2022 CPM Educational Program. All rights reserved.