1. Unit 2: Exponents Review

2. What is on the test??? 1.Exponent Rules 2.Perfect Squares 3.Square Roots / Cube Roots 4.Estimating Non-Perfect Squares 5.Scientific Notation / Standard Form 6.Multi-Step Equations

3. Very small numbers, less than one, are represented using positive or negative exponents? Negative

4. Numbers raised to negative exponents can be expressed as fractions? Yes

7. State two rules we use when operating with exponents. When multiplying, add the exponents When multiplying, add the exponents When dividing, subtract the exponents When dividing, subtract the exponents Power to a power requires multiplying the exponents Power to a power requires multiplying the exponents Zero power, unless the base is zero, has an answer of 1 Zero power, unless the base is zero, has an answer of 1 Negative exponents, the base becomes its reciprocal with a positive exponent Negative exponents, the base becomes its reciprocal with a positive exponent

8. Solve for x: 16 + x = 20 x = 4

9. Solve for x: 2x = 28 x = 14

10. Solve for c: 3(c+4) = 18 + c 3c + 12 = 18 + c c = 3

14. What is the value of 0.000078 in scientific notation? 7.8 x 10 -5

15. What is the value in standard notation? 2.34 X 10³ 2340

16. A number raised to the power of zero is always equal to… 1

17. Simplify: X 6 * X 15 x 21

19. What is 4.25 x 10 -3 in Standard Form?.00425