3.  Which number is in exponential form: -10,, 10  Identify the Base of that number  What is the exponent in that number? - the number being multiplied by itself ie. 10 +2

4. 10 x 10 Or the number of times the base is used as a factor. Also called the “power”

5.  10 0 =  10 1 =  10 2 =  10 3 = What are we doing each time to get the next number in standard form? 1 10 100 1000 = 1 x 10 = 10 x 10 = 100 x 10 Multiplying by 10

6.  10 3 = 1000   10 2 = 100  10 1 = 10  10 0 = 1  Do you see a pattern?  10 =

7. What if we keep going down and use our negative integers as exponents? Based on our patterns we have just seen, what will happen? 10 1 = 10  1010 0 = 1  1010 -1 = 1/10  1010 -2 = 1/100  10 10 -3 = 1/1000

8. 0.1 Answer: 0.1 0.01 Answer: 0.01 0.001 Answer: 0.001

9. Exponential FormFractionDecimal 10 1 10/110.0 10 0 1/1 1.0 10 -1 1/10 0.1 10 -2 1/100 0.01 10 -3 1/1000 0.001

10.  What type of numbers will be represented by powers of 10 with negative exponents? Answer: decimals and fractions, small numbers between 0 and 1 0.01 or 10 -2 1

11. 10 -x = 1 10 x Ex. 10 -2 = 1 = 1 =.01 10 2 100

12. Write the following expression as a negative exponent 10 -3