1. Unit 2 6 th Grade Math Exponents, Perfect Squares, Square Roots and Order of Operation Review

2. Rules for review Use a white board (or piece of paper ) to work out the problems and display your answer Show work when required Circle your answer Each slide will have one question followed by the answer Let’s begin!!

3. In the expression 5 4, what is the base and what is the exponent? 1

4. 5454 Exponent Base ( 5 * 5 * 5 * 5)

5. How do you read the expression 5 4 2

6. 5 4 = 5 to the power of 4 ( 5 * 5 * 5 * 5)

7. What is 10 cubed? 3

8. 10 cubed is 10 to the power of three 10 3 ( 10 * 10 * 10)

9. What is the value of 2 3 4

10. 2 x 2 x 2 4 x 2 8

11. What is the value of 4 3 5

12. 4 x 4 x 4 16 x 4 64

13. Write 4 x 4 x 4 x 4 in exponential form 6

14. Write 4 x 4 x 4 x 4 in exponential form4

15. Write 5 x 5 x 5 in exponential form 7

16. Write 5 x 5 x 5 in exponential form 5 3

17. What is the square root of 81? 8

18. 9 81 9 x 9

19. What is the square root of 144? 9

20. 12 144 12 x 12

21. A square patio has an area of 400 square feet. How long is each side? 10

22. A square patio has an area of 400 square feet. How long is each side? 20 feet 400 20 x 20

23. Janet’s pattern of increasing perfect squares is shown below. 25, 36, 49, ___, 81, 100 What number does Janet need to square in order to find the missing term? 11

24. 25, 36, 49, ____, 81, 100 5 2 6 2 7 2 2 9 2 10 2 8 64

25. What are the perfect squares between 0 and 100 12

26. What are the perfect squares between 0 and 100 1 4 9 16 25 1 2 2 2 3 2 4 2 5 2 36 49 64 81 100 6 2 7 2 8 2 9 2 10 2

27. A square rug has an area of 361 square feet. What is the length of one side? 13

28. A square rug has an area of 361 square feet. What is the length of one side? 19 19 x 19

29. 14

30. 10 10 x 10

31. Simplify 4 2 X 2 – 32 +7 15

32. 4 2 X 2 – 32 +7 16 X 2 – 32 +7 32 – 32 +7 7

33. Simplify 48 - (2 x 3) 2 16

34. 48 - (2 x 3) 2 48 - 6 2 12 48 - 36

35. Simplify 1 + (5 -3) 0 x 12 17

36. 1 + (5 - 3) 0 x 12 1 + 2 0 x 12 1 + 1 x 12 1 + 12 13

37. Simplify 8 (5 – 3) x 3 + 1 18

38. 8 (5 – 3) x 3 + 1 8 2 x 3 + 1 4 x 3 + 1 12 + 1 13

39. Simplify 4 2 - (16 - 3 2 ) + 3 19

40. 4 2 - (16 - 3 2 ) + 3 16 - (16 - 9) + 3 16 - 7+ 3 9 + 3 12

41. 1,345,634,345 0 20 Simplify

42. 1,345,634,345 0 = 1