1. Review of Chapter 8 8.4-8.8

2. 8.4 Negative and Zero Exponents If a power is raised to an exponent of zero: 1 If a power is raised to a negative exponent: 1 Notice: All the exponents are now positive. If a factor has a positive exponent, don’t move it.

3. 8.5 Scientific Notation To put a number into scientific notation: place a decimal point to make a number between 1 and 10. The number of digits between the original and new decimal points is the exponent (base is always 10.) 520,000 A decimal here makes a number between 1 and 10. The decimal point was moved 5 digits.

4. 8.5 Scientific Notation To put a number into standard notation: move the decimal place over the same number of times as the exponent..0000038 Negative exponents means the number is small. Positive exponents means the number is large.

5. 8.5 Multiplication/Division and Scientific Notation Multiply the significant digits (6 and 4.2) If the number is larger than 10, move the decimal place and add one to the exponent.

6. 8.6 Multiplication/Division and Scientific Notation Multiply the significant digits. (1.3 and 4.2) Multiply the bases *Add the exponents

7. 8.6-8.8 Powers To raise a power to a power: multiply! If there are multiple factors, raise each one to that exponent. If there is no evident exponent, use 1. 1 x 4 = 4

8. Homework pg 563 (24-38 evens, 48-62 evens) Review ch 8 worksheet is also due. Study for ch 8 test tomorrow!