0.037
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
Oh, dude, 9999 rounded off to three significant digits is 10,000. Yeah, I know, we're just moving that decimal point around like it's nobody's business. So, if you're into significant digits and all that jazz, there you have it, 10,000.
1,040 to 3 s.f., or 1,040 (3 s.f.) or 1,040.
7.0001 rounded off to 4 significant figures is 7.000
111.009mm rounded to four significant digits is 111.0mm
111.009 rounded to four significant digits is 111.0
1042L rounded off to two significant digits is 1000L. The digit "1" in the hundreds place is the most significant digit, so the number is rounded down to 1000L.
14.587020 rounded to four significant digits is 14.59
31500
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
1.0e3L
111.0
6.71 is 6.7050 is rounded to three significant figures.
Oh, dude, 9999 rounded off to three significant digits is 10,000. Yeah, I know, we're just moving that decimal point around like it's nobody's business. So, if you're into significant digits and all that jazz, there you have it, 10,000.