Counting example
How Many Significant Figures Are in 1000?
1000 usually has 1 significant figure. Learn why trailing zeros in whole numbers are ambiguous.
Question
1000
Answer
1000 has 1 significant figure in standard sig fig counting.
Step-by-step explanation
1
The digit 1 is significant.
2
Zeros at the end of a whole number without a decimal point are placeholders.
3
Use 1.000e+3 if you need to show 4 significant figures.