The number 0 has one significant figure. Therefore, any zeros after the decimal point are also significant. Example: 0.00 has three significant figures. Any numbers in scientific notation are considered significant.

How many significant figures does 0.0 have?

0.0203 has 3 significant figures, 0.020 has 2 significant figures, 0.02 has 1 significant figure, 0.0 has 0 significant figures.

Does .0 count as a decimal place?

If a zero is behind a decimal and is trailing a non-zero, then it is significant. E.g. 5.00 - 3 significant figures. If a zero is leading a number, before or after the decimal, it is not significant. ... If a zero is trailing a non-zero digit, but it is not behind a decimal, it is not significant.