1st Quarter Chemistry 2012: Significant Figure Calculations

Significant Figure Calculations

Figure out how to do calculations using the magic of significant figures. 

Solve the following mathematical problems such that the answers have the correct number of significant figures:

1)        334.54 grams + 198 grams = ___________________

2)        34.1 grams / 1.1 mL = ___________________

3)        2.11 x 10³ joules / 34 seconds = ___________________

4)        0.0010 meters – 0.11 m = ___________________

5)        349 cm + 1.10 cm + 100 cm = ___________________

6)        450 meters / 114 seconds = ___________________

7)        298.01 kilograms + 34.112 kilograms = ___________________

8)        84 m/s x 31.221 s = ___________________

SPOILER ALERT!!!     SPOILER ALERT!!!    SPOILER ALERT!!!     SPOILER ALERT!!!     SPOILER ALERT!!!

     

Significant Figure Calculations – Answers

Solve the following mathematical problems such that the answers have the correct number of significant figures:

1)        533 grams (rounded from 532.42 grams)

2)        31 g/mL (not rounded)

3)        62 J/s (rounded from 62.0588 J/s)

4)        -0.11 m (rounded from -0.109 m)

5)        500 cm (rounded from 450.1 cm)

6)        3.9 m/s (rounded from 3.9474 m/s)

7)        332.12 kg (rounded from 332.122 kg)

8)        2600 m (rounded from 2622.564 m)