1. Adapted from www.regentsprep.org ©2009, Dr. Jennifer L. Bell, LaGrange High School, LaGrange, Georgia

2. ~BINGO!~ The winner who says “BINGO” at the appropriate time will get a mystery prize!The winner who says “BINGO” at the appropriate time will get a mystery prize! Anyone acting poorly will be disqualified.Anyone acting poorly will be disqualified.

3. Numbers Pick some of the numbers to place in any empty box. These numbers represent answers to problems about complex numbers.Pick some of the numbers to place in any empty box. These numbers represent answers to problems about complex numbers. -6i √ 2, -5i, -2i √ 3, -2i √ 7, -16i √ 3, i, i /2, i √ 5, i √ 7, 2i √ 3, 8i √ 2, 4i √ 5, 2i √ 6, 3i, 3i √ 2, 3i/4, 3i/5, 6i, i √ 3, 7i / 10, (8i √ 5)/5, 10i, 18i, (i √ 2)/2

4. -100

5. - -25

6. 3 -36

7. -25 3535

8. - -12

9. -9 1313

10. 4 -8

11. 16 25 3434 -

12. -7

13. - 4 - 48

14. -75 1515

15. -27 2323

16. -9 1414

17. -5

18. - -700 1515

19. 49 64 4545 -

20. 1818 2 -

21. 1414 -

22. -3 -8

23. -125 4545

24. -24

25. -144 1212

26. -20 4545

27. -72 1212

28. 1. 10i 2. -5i 3. 18i 4. 3i 5. -2i √ 3 6. i 7. 8i √ 2 8. 3i/5 9. i √ 7 10. -16i √ 3 11. i √ 3 12. 2i √ 3 13. 3i/4 14. i √ 5 15. -2i √ 7 16. 7i/10 17. (i √ 2)/2 18. i/2 19. -6i √ 2 20. 4i √ 5 21. 2i √ 6 22. 6i 23. (8i √ 5)/5 24. 3i √ 2