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.
-3 - 1
-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