### Home > CC2 > Chapter 4 > Lesson 4.3.3 > Problem 4-117

4-117.

Write the expression as shown on the Expression Mats, then simplify by making zeros and combining like terms.

Remove all zero pairs from the mat.

How many of each tile are you left with?

See part (a).

Use the eTool below to simplify the expressions.

Click the link at right for the full version of the eTool: *4-117 HW eTool* (CPM)