## CHAPTER 9: LINEAR RELATIONS AND LINEAR EQUATIONS

**Lesson 5: Solving Equations Using Mental Mathematics **

**Goal**

Solve a problem by solving a related equation

**Instructions for Use**

**Algebra Four**

To play Algebra Four, select a time limit, a level of difficulty, and the types of problems to be solved.

**Alginon's Albegraic Explorer**

To use Alginon’s Algebraic Explorer, click on “Assessment Activity” button on the right. Solve the equation shown and then click on the correct answer before the numbers leave the screen. The activity will keep track of your accuracy.