1. Scientific Notation (6.6) Moving decimals To and fro

2. Start with a POD Multiply on your calculators: 102400 X 3926000 What sort of answer pops up on the screen? What does it mean?

3. Basic vocabulary 4.02 X 10 11 In this number, 4.02 is the mantissa (to make weight) also called: coefficient, significand ranges from 1 to less than 10 11 is the characteristic (giving the size of the number) can be positive, negative, or 0 There are 3 significant digits (4, 0, and 2).

4. Try it Give the characteristic, mantissa and number of significant digits for each of the following: 1.3.216 x 10 -5 2.8.4 x 10 2 3.-1.17 x 10 9

5. Conversion Convert to scientific notation. How many significant digits are in each one? 1.9 2.3250000 3..007814 4..2024 5.24.7 million

6. Conversion Convert from scientific notation. What would the notation for these look like on your calculators? 1.3.15 x 10 8 2.4.2 x 10 -12 3.9.7 x 10 0 4.8.111115 x 10 5 5.5.7 x 10 1

7. Multiply Multiply and express in scientific notation. 1.(3 x 10 17 )(4 x 10 2 ) 2.(4 x 10 15 )(5.2 x 10 -13 ) 3.(6.8 x 10 8 )(2 x 10 -21 )