# Which statement is correct one and how? 1- Which number has three significant figures? 2- Which number has three significant digits?

##### 1 Answer

Either statement is correct, because they mean the same thing. For example,

The three significant digits, or significant figures, are "

In a greater context, consider measuring with a mass balance that has an **uncertainty** of

This means that if the above mass was measured on this balance, then you would report your measurement as **acceptable range** for comparing to a literature value would be