Question

What's the significant figure 6.32

Answer 1

3 sf

(Rules: 
> Non-zero digits are always significant. 
123 - 3sf
> Any zeros between two significant digits are significant.
102 - 3 sf
> A final zero or trailing zeros in the decimal portion ONLY are significant.
4500 - 2 sf
0.04 - 1 sf
0.0013 - 2 sf )