1. Slideshow 10, Mathematics Mr Richard Sasaki, Room 307 Powers and Indices

2. Objectives To recall algebraic rules learned so farTo recall algebraic rules learned so far To learn how products of an unknown make a powerTo learn how products of an unknown make a power To learn how to multiply and divide powers of an unknownTo learn how to multiply and divide powers of an unknown

3. Review Let’s review the main rules we have learned so far.

4. Powers (Indices) The small 2 symbol at the top is called the power or index. Note: Power and Index mean the same thing. Indices is plural of index in this context.

5. Calculation (Multiplication) Let’s try some multiplication. Example Have a guess! What will happen when we divide indices?

6. Calculation (Division) Example

7. Answers

8. Negative Powers and Zero Writing this in both ways is fine. Note: Any number to the power zero is 1.

9. Answers

10. Brackets and Other Calculations Example

11. Answers - Easy

12. Answers - Hard