Name __________________________________

Block ________________

Figuring out Significant Figures

Look at the data below. Come up with as many “rules” as you can for assigning significant figures to data collected by someone else. Double check your rules to be sure none of the numbers are unexplained ‘exceptions’!

Number as reported by someone Number of significant figures

other than your lab group correctly assigned to this number

1, 252 4

2.13 3

600 1

0.02 1

635,000.0 7

1.00 3

235.0 4

0.0020 2

16.02 4

10.01 4

11.00 4

0.01 1

2,000 1

635,000.1 7

2,000. 4

4.56 x 10⁴ 3

2.208 x 10^-8 4

7.60 x 10¹¹ 3

8.789452 x 10^-2 7