### Home > CAAC > Chapter 3 > Lesson 3.1.1 > Problem 3-4

3-4.

Refer to the Math Notes box in Lesson 2.1.6.

Remove zero pairs from each region of the mats.

See the hints in part (a).

Find the value of each mat.

Left

-3 - 1

-4

-4 > -7 The left Expression Comparison Mat is greater.

Use the eTools below to help solve the problems.

Click the link at right for the full version of the eTool: AC 3-4a HW eTool

Click the link at right for the full version of the eTool: AC 3-4b HW eTool