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.
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.
You have not listed any measurements, but 0.301 and 301 both have three significant figures.
In which one of the following is the number correctly rounded to three significant figures?
0.00042, 0.00099
101/3.75
2.45+18.3
10.3 cm
3.5 kg
38 cm
30.4 kg
All of those figures are significant. If you want to round it to 2 sig figs, that would be 13.
28.71
2700
Five, two and five sig figs respectively.
45.0 is the 44.981 to 3 significant figures.
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
17.9867 to 3 significant figures is 18.0
1100 to 3 significant figures is 1.10e3
2808 into 3 significant figures is 2810
0.0000004799 into 3 significant figures is 4.80e-7
88930371.007 to 2 significant figures is 89000000
0.0034088 in three significant figures would be 0.00341
8468 rounded to 2 significant figures is 8500
0.004560 to two significant figures results in: 0.0046
0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
0.000039 as you have to round it up. 3 and 8 are the significant figures but as you must round up, the answer becomes 0.000039.
The number 10.989 rounded to 3 significant figures is 11.0