0.00584 rounded off to 1 significant figure is 0.006
7.0001 rounded off to 4 significant figures is 7.000
0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
0.037
600
0.00584 rounded off to 1 significant figure is 0.006
30,569 rounded off to 1 significant figure is 30,000
111.0 mm
To one significant figure 7 Rounded off to two significant figures (tenths in your example) 7.4
That depends to what number of figures you are rounding to. Rounded to one significant figure, 361 is approximately equal to 400. Rounded to two significant figures, this is equal to 360.
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". The first figure to be discarded is '6' and as this is greater than 5 then the previous figure (4) is increased by 1 (to 5). 29.46 when rounded off to three significant figures is 29.5.
0.6942 rounded off to 2 significant figures is 0.69
7.0001 rounded off to 4 significant figures is 7.000
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". When 16490 is rounded off to 2 significant figures then the first figure to be discarded is 4. As this is less than 5 then the previous figure (6) is not increased by 1. 16490 to 2 significant figures is 16000.
0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
155cm rounded to two significant figures is 160cm
111.009 mm rounded off to four significant figures is 111.0