Very interesting!
If suppose I do the experiment to find acceleration due to gravity at a place and if I get the value of g finally calculated as 9.7920 m/s2 then I give it as needed.
If I am supposed to give it only with two significant figure, then I would write g value as 9.8 m/s2
Or if it is to be with three significant figure, then I write as 9.79
Suppose, I do experiment to determine the density of a liquid. It is found to be 840.2 kg/m3
By scientific notation it could be written as 8.402 x 102 kg/m3
If it is enough to give with three significant figure then I write that one as 8.40 x 102 kg m-3
So I don't drop 0 though it does not have any value being in the second decimal place.
This is beauty of giving in significant figures
The number 0.3 has one significant figure. The digit '3' is the only non-zero digit and is considered significant, while the leading zero before the decimal point does not count as a significant figure.
The significant figure of a number refers to the non-zero digits and any zeros that are between them or at the end of the number. In the number 257166, the first significant figure is 2, as it is the first non-zero digit in the number.
When rounding the number 213 to one significant figure, you look at the first digit, which is 2. The next digit is 1, which is less than 5, so you do not round up. Thus, 213 rounded to one significant figure is 200.
When rounding 963 to one significant figure, we look at the first digit, which is 9. The next digit is 6, which is 5 or greater, so we round up. Therefore, 963 rounded to one significant figure is 1000.
The number 0.07 has one significant figure. The leading zero is not counted as significant, so only the digit '7' is considered significant.
The number 327 to one significant figure is 300. The digit 3 is the first and only significant figure, and numbers after this digit are considered not significant.
The number 02 has one significant figure because a leading zero is not significant. So the significant figure is the digit 2.
Any digit in a number which is to the right of the first digit which isn't a zero, including the first digit
The number 0.3 has one significant figure. The digit '3' is the only non-zero digit and is considered significant, while the leading zero before the decimal point does not count as a significant figure.
1 significant figure. It can also be written as 4x10^6 (one sig fig)
The significant figure of a number refers to the non-zero digits and any zeros that are between them or at the end of the number. In the number 257166, the first significant figure is 2, as it is the first non-zero digit in the number.
It is then 30,000 rounded to 1 significant figure
The number 46313 rounded to 1 significant figure is 50000. The significant digit is 5, so the number is rounded up to the nearest power of 10.
When rounding the number 213 to one significant figure, you look at the first digit, which is 2. The next digit is 1, which is less than 5, so you do not round up. Thus, 213 rounded to one significant figure is 200.
The measurement of 417.32 g has five significant figures. Each non-zero digit and any zeros between them are considered significant in a decimal number.
0.003 has one significant figure. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
0.000892 to 1 significant figure is 0.0009 (1st significant figure is the first non-digit from the left, where in this case you can omit the number 2 since it will make no difference to the answer)