# How many significant digits are in the value 0.0050340?

##### 1 Answer

Jan 18, 2016

#### Explanation:

Hi! Here are the rules in identifying significant figures:

- all non-zero digits are significant
- all digits of a measured quantity including the uncertain one
- for figures including zero:
- zeros between non-zero digits are significant

(ex: 1005 kg#-># 4 significant number; 1.03 cm#-># 3 significant numbers) - zeros at the beginning of a number are
**never**significant

(ex: 0.02 g#-># 1 significant number; 0.0026 g#-># 2 significant numbers) - zeros at the end of a number are significant if the number contains a decimal point

(ex: 0.0200 g#-># 3 significant figures; 3.0 cm#-># 2 significant numbers)

- zeros between non-zero digits are significant