0.00755
Any zeros that are before an additional number do not count. Thus,
"0.00" would not count as significant figures. The first significant figure is the "7", with the "5" following it.
With the second five (in my answer), "4" was rounded up to "5" because the number behind the "4" was a "6", thus the "4" rounds up.
7.70 It would be rounded off to 7.701, but since the 1 is less than 5, it is omitted if defined to only 3 figures.
If I round off 0.052018 to three significant figures, the result is 5.20 x 10^-2.
0.0754
its 0.0754
0.00231
0.000328
0.076
It already is rounded to three significant figures.
301
Three
Three - all nonzero numbers are significant.
3.74mL, as the 8 rounds up
The measurement of 29.46 cm when rounded to three significant numbers becomes 29.5 cm
12,000
It is 9680
16.558 rounded to three significant figures is 16.6
0.00721004 rounded into three significant figures is 0.00721
0.00721004 rounded to three significant figures is 0.00721
44.981 rounded to three significant figures is 45.0
0.00858345 rounded to three significant figures is 0.00858
323.565 rounded to three significant digits is 323.56
79,966.92 rounded to three significant figures is 8.00e4
1,399.54 rounded to three significant figures is 1.40e3
0.00076321cg rounded to three significant figures is 0.000763cg