## CHAPTER 2: POWERS, EXPONENTS, AND SQUARE ROOTS

**Lesson 6: **Communicate about Calculations with Powers

Lesson 7: Calculating Square Roots

Lesson 8: Estimating Square Roots

Use these interactive activities to have fun on the Web while learning about powers, exponents, and square roots.

**Instructions for Use**

**Squares and Square Roots **

Determine the square or square root of the number as indicated. Enter in your answer and check to see if it is correct.

**Pythagorean Theorem Game**

Click “play” to begin the game. Use the Pythagorean theorem to determine the missing side length of the triangle.