2. Estimating Square Roots! A. Perfect Square… or Not?! A. Perfect Square… or Not?! C. Pick the Point! E. Choose a Side! F. Arrange It! D. Where am I?!? B. Name that Square Root! Challenge! Problems and File By Deborah Johnson

3. Perfect Square… or Not?!? NEXT Label your paper:

4. Can you find who is NOT a perfect square? Click on the numbers below that are NOT perfect squares. You will know if you are correct if the number disappears. On your paper: Using the remaining values, find the square root of each number.

5. Name that Square Root! NEXT Label your paper: 1. 2. 3.

6. Name all of the square roots of 16. 4-4 and 4-4-2 and 2

7. Name all of the square roots of 225. 1516-16 and 16-15 and 15

8. Name all of the square roots of 361. 1719-19 and 19-17 and 17

9. Pick the Point! NEXT Label your paper: 1. 2. 3. 4.

10. -3 -2012 Click on your answer.

11. -9-8-7-6-5-4 Click on your answer.

12. 8 9 1011 Click on your answer.

13. 7.2 Click on your answer. 7.07.47.67.88.0

14. Where Am I? NEXT Label your paper: 1. 2. 3. 4.

15. 10 and 1111 and 1213 and 1412 and 13

16. 187 and 18914 and 1513 and 14

17. -28 and -26-5 and -45 and 6-6 and -5

18. Which square root would not be between 13 and 14 on a number line?

19. Choose a Side! NEXT Label your paper: 1. 2. 3. 4.

20. What is the length of each side of the square? A = 64 cm² 32 16 8 4

21. Which is the best estimate of the length of each side of the square below? A = 98 cm² 9 10 8 22.25

22. The area of a square deck is 225 ft². What is the length of one side of the deck? 56.25 15 112.5 14

23. The square below has an area of 441 square feet. What is the perimeter of the square? A = 441 sq. ft 41 ft 22 ft 110.25 ft 21 ft

24. Arrange It! NEXT Label your paper: 1. 2. 3.

25. Which list arranges the following numbers from least to greatest?

26. Which list arranges the following numbers from greatest to least?

27. Which value is incorrectly represented on the number line? 3 4 5 6 4.5

28. TRY AGAIN! Remember, a square root is a number multiplied by itself to form a product. Think! 3 x 3 = 9 BUT (-3) x (-3) also equals 9! Back!

29. You are so SMART! NEXT! Correct!

30. TRY AGAIN! Remember, a square root is a number multiplied by itself to form a product. Think! 3 x 3 = 9 BUT (-3) x (-3) also equals 9! Back!

31. Look at you now! NEXT! Correct!

32. TRY AGAIN! Remember, a square root is a number multiplied by itself to form a product. Think! 3 x 3 = 9 BUT (-3) x (-3) also equals 9! Back!

33. Genius Taking Over! NEXT! Correct!

34. -3 -2012 Did you square all of your numbers on the number line? TRY AGAIN! Back!

35. You are so SMART! NEXT! Correct!

36. Did you square all of your numbers on the number line? TRY AGAIN! Back! -9-8-7-6-5-4

37. Wow! Excellent! NEXT! Correct!

38. Did you square all of your numbers on the number line? TRY AGAIN! Think: Is 107 closer to 100 or 121? Back! 8 9 1011

39. Future Millionaire… NEXT! Correct!

40. 1 st : Think! Is 52 a perfect square? TRY AGAIN! Who is closer to 52? Back! 7.27.07.47.67.88.0 Then who can you eliminate? 2 nd : Square 7.2 and 7.6. 7.2 X 7.2 7.6 X 7.6

41. Fantastic! NEXT! Correct!

42. Did you square all of your numbers? TRY AGAIN! Back!

43. Future Billionaire! NEXT! Correct!

44. Did you square all of your numbers? TRY AGAIN! Back! 12 and 13187 and 18914 and 1513 and 14

45. You are so SMART! NEXT! Correct!

46. Did you square all of your numbers? TRY AGAIN! Back! -28 and -26-5 and -45 and 6-6 and -5

47. Look at you now! NEXT! Correct!

48. Did you square 13 and 14? TRY AGAIN! Back! …well then do it again!!!

49. Wonderful! NEXT! Correct!

50. What do we know about a square? TRY AGAIN! NEXT All 4 sides are equal in length! So if A = l·w, then A = s² for a square

51. Did you square each side length to find the area? TRY AGAIN! Back! A = 64 cm² 32 16 8 4 x 32 x8x8 x 16 x 4

52. Genius Alert! NEXT! Correct!

53. Did you square each side length to find the area CLOSEST to 98? TRY AGAIN! Back! A = 98 cm² X 22.25 x9x9 x8x8 x 10 9 10 8 22.25

54. SMART x 1,000! NEXT! Correct!

55. Did you square each side length to find the area? TRY AGAIN! Back! A = 225 ft² X 15 X 112.5 X 56.25 x 14 56.25 15 112.5 14

56. What- What?!?! NEXT! Correct!

57. Did you square each side length to find the area? TRY AGAIN! Back! A = 441 ft² X 21 X 41 X 110.25 x 22 41 ft 22 ft 110.25 ft 21 ft

58. Intelligence 101! NEXT! Correct!

59. Let’s compare all of the numbers on a number line: TRY AGAIN! Back! 12345 2.55

60. You are so SMART! NEXT! Correct!

61. Let’s compare all of the numbers on a number line: TRY AGAIN! Back! -21 34 -2 2 0 4

62. Look at you now! NEXT! Correct!

63. Tip: Check each number individually. TRY AGAIN! Back! 3 4 5 6 4.5 Correct!

64. Future of America! NEXT! Correct!