Answer:
If there is a zero between two non-zero digits then it is also a significant figure. For example; 4.5006 have five significant figures. Zeroes at the end or on the right side of the number are also significant. For example; 0.500 has three significant figures.The number of significant figures in a number use the following 3 rules: Non-zero digits are always significant. Any zeros between two significant digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.
