1. Do not use any spaces in your answer EXCEPT between digits and units (Example: 23.3 mL).
2. Abbreviate units ( m, mL, cm2...).

1. What is: 34.0 cm x 5.7 cm x 2.800 cm?

   
   
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2. How many sig figs in 1,300. cm?

   
   
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3. What is the sum of 1.2 cm + 3.78 cm + 45.38 cm?

   
   
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4. How many sig figs in 0.0010 mL?

   
   
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5. 63.20 m / 2.4 m = ?

   
   
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6. What is the only digit that is sometimes significant and sometimes not significant.

   
   
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7. How many sig figs in: 5.000 mL?

   
   
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8. Zeros used as __?__ are never significant figures.

   
   
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9. 236 cm x 0.23 cm = ?

   
   
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10. In 2005 the US population was 285,000,0000 people. How many significant figures in that measurement?

    
    
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11. How many significant figures in 30.0110 km?

    
    
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12. What is the product of 34.8 cm x 98 cm?

    
    
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13. 128.36 g / 36.7 mL =

    1.   ?    3.50 g/mL

14. 240 m - 2.3 m = ?

    
    
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15. 13.7 cm - 0.045 cm = ?

    
    
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16. The Earth is 93 million miles from the Sun. How many significant figures are in that measurement?

    1.   ?    1
    2.   ?    2
    3.   ?    3
    4.   ?    4
    5.   ?    5
    6.   ?    9
    7.   ?    10

17. When adding or subtracting measurements in science, always round your answer to the:

    1.   ?    Least number of sig figs in your measurements you are working with.
    2.   ?    Greatest number of sig figs in your measurements you are working with.
    3.   ?    Least precise measurement you are working with.
    4.   ?    Most precise measurement you are working with.

18. There are exactly 100 cm in a meter. How many significant figures in this measurement?

    1.   ?    1
    2.   ?    2
    3.   ?    3
    4.   ?    4
    5.   ?    infinte number

19. Whenever you add measurements you made with your metric ruler you will always round your answer to the nearest:

    1.   ?    centimeter
    2.   ?    tenth of a centimeter
    3.   ?    hundredths of a centimeter
    4.   ?    thousandths of a centimeter
    5.   ?    ten-thousandths of a centimeter

20. 23.893 cm x 45.2 cm x 5 cm = ?

    
    
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