CPM Homework Banner

Home > MC1 > Chapter 3 > Lesson 3.4.3 > Problem 3-118

3-118.

Find the value of each expression. Change any subtraction problem to an equivalent addition problem and draw it with + and − pieces.

  1. 5 − 7

  1. −5 + (−7)

  2. −5 + 7

  3. −5 − (−7)

The equivalent addition problem is 5 + (−7).

A drawing should look something like this:

− − − − −
− − − − − − −

2
Remember to draw your diagram.

How can you take away 7 negatives from 5 negatives?

Draw an integer tile diagram. You will need to add some zero pairs.