1. Prerequisite Skills VOCABULARY CHECK Copy and complete using a review word from the list: power, base, exponent, fraction. ANSWERbase ANSWERpower ANSWERexponent 1. In the expression 2 6, 2 is called the _ ? _. 2. The expression 3 7 is a(n) _ ? _ of 3. 3. In the expression 5 4, 4 is called the _ ? _.

2. Prerequisite Skills SKILL CHECK Evaluate the expression. 4. 3 2 3 ANSWER 27 5. (2 + 3) 2 ANSWER 25 6. 4 2 4 2 ANSWER 1 7. (6 – 5) 7 ANSWER 1

3. Prerequisite Skills SKILL CHECK Evaluate the expression. ANSWER 29 ANSWER 10 10. 7 2 – 3 3 ANSWER 22 ANSWER 9 8. 3 2 + 4 5 11. 6 2 2 2 9. 12 – 8 2 2

4. Prerequisite Skills SKILL CHECK Simplify the expression by combining like terms. 12. 7x + 4 – 3x ANSWER 4x + 4 13. – 2 x + 5x – x ANSWER 2x2x 14. x + 4 – 12x ANSWER – 11x + 4

5. Prerequisite Skills SKILL CHECK Simplify the expression by combining like terms. ANSWER 7x – 5 15. 6x –5 + x 16. 15y + 9x – 6x – y ANSWER 3x + 14y 17. -13y + 8x – 2x + 3y –10 ANSWER 6x – 10y – 10

6. Prerequisite Skills SKILL CHECK Solve the equation. Check your answer. ANSWER 4 18. 2a + 6 = 14 19. 8 – 4m = 20 ANSWER – 3 20. – 7 + 5c = – 32 ANSWER – 5