How many significant figures in 0.01010?

Answer 1

There are 5 significants in 91010 , remember that only 'leading' zeroes (the ones on the left side) are NOT significant.

The significans of the last zero (at the right) is ambiguous because it is not followed by a decimal point. (Cf. Related link)

Answer 2

4 significant figures.

Answer 3

There are four significant figures in 0.01010.

Answer 4

3 of them.

Answer 5

5

Answer 6

8

Answer 7

Three