Counting example
How Many Significant Figures Are in 90.010?
90.010 has 5 significant figures. Zeros between non-zero digits and trailing decimal zeros count.
Question
90.010
Answer
90.010 has 5 significant figures.
Step-by-step explanation
1
The 9 is non-zero, so it is significant.
2
The zeros between 9 and 1 are significant.
3
The final zero is after the decimal point, so it is significant too.