F4 Chapter 1: Standard Form

Question 1

What are the rules if significant figures?

Answer 1

1. All non-zero digits are significant
2. All zeros between non-zero digits are
   significant
3. All zeros after any non-zero digits in a
   decimal are significant
4. All zeros before any non-zero digits in a
   decimal are not significant
5. All zeros after any non-zero digit in a whole
   number are not significant unless stated
   otherwise