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There are three rules on determining how many significant figures are in a number:
- 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.
Also know, what are the 5 Rules of significant figures?
Significant Figures
- Annotation category:
- RULES FOR SIGNIFICANT FIGURES.
- All non-zero numbers ARE significant.
- Zeros between two non-zero digits ARE significant.
- Leading zeros are NOT significant.
- Trailing zeros to the right of the decimal ARE significant.
- Trailing zeros in a whole number with the decimal shown ARE significant.
Consequently, how many significant figures does 10.0 have?
two significant digits
Answer: the significant figures of the number 0.0560 is 3.