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# Measurement and Units Practice Questions

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Review these concepts if needed - Measurement and Units Study Guide

## Practice Questions

Identify the number of significant figures in the following numbers.

1. 5.530

2. 2.4 * 103

3. 0.01215

4. 7.24

5. 121.30

Solve the following using the correct number of significant figures.

6. 2.4 + 3.69 * 4.2

7. 6.022 * 1023 ÷ 12.0

8. (0.24 + 3.25 – 10.2) ÷ 3.2

9. 1.5 * 8.5 – 3.13

10. 12.13 + 3.3

Convert the following using the correct number of significant figures.

11. 56 mm to km

12. 3.4 angstroms to centimeters

13. 23.3 oz. to kg

14. 5 ft., 11 in. to m

15. 15.5 qts. to mL

Convert the following using the correct number of significant figures.

16. 18° C to °F

17. 212° F to K (boiling point of water)

18. 85° F to °C

19. 25° C to K

20. 235 K to °C

1. 4

2. 2

3. 4

4. 3

5. 5

6. 18

7. 5.02 * 1022

8. –2.1

9. 10

10. 15.4

11. 5.6 * 10–5 km

12. 3.4 * 10–8 cm

13. 0.660 kg

14. 0.150 m

15. 14,600 mL

16. 64° F

17. 373 K

18. 29° C

19. 298 K

20. –38° C

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