Question

How many sig figs are in 123,876.3 1,236,840 422000 0.000000000000211 0.000238 0.0000205

Answer 1

123,876.3 = 7 sig figs

1,236,840= 7 sig figs

422000 = 3 sig figs

0.000000000000211= 3 sig figs

0.000238 = 3 sig figs

0.0000205 = 3 sig figs

Explanation:

Leading zeros are not significant, trailing zeros with no decimal are not significant. Whole numbers are always significant.