What is 0.002305 rounded to three significant numbers?

Answer 1

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.

Answer 2

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.

Answer 3

If I round off 0.052018 to three significant figures, the result is 5.20 x 10^-2.

Answer 4

0.00231

Answer 5

0.0754

Answer 6

its 0.0754

Answer 7

0.00231

Answer 8

0.000328

Answer 9

0.076