Are you supposed to round while doing significant figures?

Answer 1

62 rounded to one significant figure is 60.

57 rounded to one significant figure is 60.

573 rounded to one significant figure is 600.

0.0573 rounded to one significant figure is 0.06.

In each of these answers the 6 is the only significant figure.

Answer 2

The question is not using the terms correctly. A number is rounded to N significant places, N being a variable. So you would round to 2 significant figures, or 4, 5, or whatever was appropriate. Good explanatins and examples are to found from the links below,

If you are asking whether to round up or down, in pre-computer days, it was usual to round down between .0 and .49, and to round up from .5 to .99. With the advent of spreadsheets, it is more dependent on the programming. Some round up, some round down. Some round up half the time and down the other half. Some randomly round up or down.

Answer 3

You have not listed any measurements, but 0.301 and 301 both have three significant figures.

Answer 4

In which one of the following is the number correctly rounded to three significant figures?

Answer 5

0.00042, 0.00099

Answer 6

101/3.75

2.45+18.3

Answer 7

10.3 cm

Answer 8

3.5 kg

Answer 9

38 cm

Answer 10

30.4 kg