1. Scientific Notation for big numbers ex. 123.4 = 1.234 x 10 2 2 places single digit from 1 to 9 power of ten The number of places the decimal shifts determines the exponent. Try it on your calculator with Exp or EE, etc.

2. Scientific Notation for small numbers ex. 0.123 = 1.23 x 10 -1 1 place single digit from 1 to 9 power of ten The number of places the decimal shifts determines the exponent. Try it on your calculator with Exp or EE, etc.

3. Big numbers require a positive exponent. Small numbers require a negative exponent.

4. Write the following in scientific notation and check them with your calculator: 1.27.2 2.8614 3.0.00057 4.0.2 5.1 6.11 x 10 3 Try it on your calculator with Exp or EE, etc.

5. To multiple/divide numbers in scientific notation, multiply/divide the first factors and apply exponent laws to the powers of ten. You may need to rewrite answers in scientific notation. 7.1x10 15 x 6.9x10 4 4.5x10 19 5.79x10 7 Or we could use the calculator.

6. Estimate answers for each of the following. Write down your estimation and then check with your calculator. 1.9x10 33 x 2.3x10 44 7.6x10 44 1.2x10 12