# How many significant figures are in the measurement 2103.2 g?

##### 1 Answer

Jan 24, 2017

#### Explanation:

The problem provides you with the following measurement

#"2103.2 g"#

The first thing you need to do here is to figure out the number of **non-zero digits** you have in this measurement.

As you know, non-zero digits are **always** significant, so right from the start you can say that your measurement has *at least* **significant figures**, since

#2103.2 -> "4 non-zero digits: " 2,1,3,2#

Now, your measurement also contains a **sandwiched zero**, i.e. a zero that follows and is followed by a non-zero digit.

More specifically, you have

#21color(red)(0)3.2 -># the zero follows a non-zero digit,#1# ,and is folowed by a non-zero digit,#3#

Sandwiched zeros are **always** significant, which means that your measurement has **sig figs**

four non-zero digits:#2,1,3,2# one sandwiched zero