1. Review the following vocabulary words for your recovery quiz tomorrow Matter Chemistry Volume Mass Weight Organic chemistry Measurement Accuracy Precision

2. Review Get in groups of 4-6 students

3. 539.87 Round to the nearest ten A)539 B)539.9 C)539.8 D)540

4. 451.8789 Round to the nearest hundredth A)451.878 B)500 C)451.88 D)451.879

5. 539.87 Round to the nearest tenth A)539 B)539.9 C)539.8 D)540

6. 8709.0967 Round to the nearest thousandth A) 9000 B) 8000 C) 8709.097 D) 8709.0867

7. 8709.0967 Round to the nearest thousand A) 9000 B) 8000 C) 8709.097 D) 8709.0867

8. 67.95 Round to the nearest tenth A) 70 B) 68 C) 67.9 D) 68.0

9. 546.02 Round to the nearest whole number A) 546.0 B) 546 C) 547 D) 500

10. 597.352 Round to the nearest tenth A) 600 B) 597.3 C) 597.4 D) 597

11. 45.445237 Round to the nearest ten A) 45.5 B) 45.45 C) 50 D) 45

12. 252.6786 Round to the nearest hundred A) 300 B) 252.68 C) 252.67 D) 252.679

13. 78,363.5528954394 Round to the nearest millionth A) 78,363.55290 B) 78,363.5528954 C) 78,363.5529 D) 78,363.552895

14. $16.32 Round to the nearest dollar A) $16.00 B) $17.00 C) $20.00 D) $10.00

15. 306 How many significant figures? A) 2 B) 0 C) 3 D) 1

16. 0.008310 How many significant figures? A) 5 B) 3 C) 6 D) 4

17. 56000 How many significant figures? A) 2 B) 5 C) 3 D) 1

18. 84.30 How many significant figures? A) 2 B) 4 C) 3 D) 1

19. 8.01 x 10 3 How many significant figures? A) 2 B) 6 C) 3 D) 5

20. 5.0 x 10 -2 How many significant figures? A) 2 B) 6 C) 3 D) 5

21. 8769.61 Convert into correct scientific notation A) 8.76 x 10 3 B) 87.6961 x 10 2 C) 8.76 x 10 -3 D) 8.76961 x 10 3

22. 640000 Convert into correct scientific notation A) 64 x 10 4 B) 6.4 x 10 5 C) 0.64 x 10 -6 D) 6.4 x 10 -5

23. 587.3 x 10 7 Convert into correct scientific notation A) 5.873 x 10 5 B) 5.873 x 10 7 C) 5873000000 D) 5.873 x 10 9

24. 0.0003 Convert into correct scientific notation A) 0.3 x 10 4 B) 3 x 10 4 C) 3 x 10 -4 D) 0.3 x 10 -3

25. 0.0172 Convert into correct scientific notation A) 1.72 x 10 -2 B) 1.72 x 10 3 C) 17.2 x 10 -3 D) 0.172 x 10 -1

26. 23.9 m + 24 m + 5.6 m = Answer with correct # of significant figures A) 53.5 m 3 B) 53.5 m C) 53 D) 53 m

27. 5.31 m x 3.4 m = Answer with correct # of significant figures A) 18.054 m 3 B) 18 m 2 C) 18.1 m D) 18.05 m 2

28. 581 kL – 492.6 kL = Answer with correct # of significant figures A) 88.4 kL B) 88 kL C) 88.4 D) 88

29. 4.21 x10 3 + 3.9 x10 4 Answer with correct scientific notation and correct sig. figs. A) 4.3 x10 4 B) 4.321 x10 4 C) 43210 D) 4.32 x10 4