111.009mm rounded to four significant digits is 111.0mm
111
111.0
0.6942 rounded off to 2 significant figures is 0.69
30,569 rounded off to 1 significant figure is 30,000
The correct representation when the number 0.007225 is rounded off to three significant figures is 0.00722
11225 g rounded to 3 significant figures is 11200g
111.009 rounded to four significant digits is 111.0
222.008 mm rounded to four significant digits is 222.0 mm
14.587020 rounded to four significant digits is 14.59
31500
0.037
16.3
Three. All non-zero digits are significant, all zeroes between other digits, and all digits to the right of the decimal. The reason for this is that if this is rounded off, it apparently is rounded off to the nearest tenth, otherwise the tenth place would not be shown. if it were rounded off to the unit, it would read 39, not 39.0 ■
111.0
111.0
1.0e3L
6.71 is 6.7050 is rounded to three significant figures.
0.999 All leading zeros are non-significant.