Question

Which of the following measurements has two significant digits?


0.3 g


5.00 m


0.05 kg


0.022 km

Answer 1

0.022 has 2 digits because you would count from the left starting with the first nonzero number

Answer 2

0.022km explanation: 0.3g only has 1 sig digit and so does thy other ones except for 0.022