# How do you put 1.349582 into 3 significant figures?

##### 1 Answer

Sep 2, 2016

Round to 1.35. Non-zero digits are always significant. Refer to the rules for rounding significant figures in the explanation.

#### Explanation:

If the first number to be dropped is 4 or less, round down.

If the first number to be dropped is 6 or greater, round up.

If the first number to be dropped is 5, round so that the result will end with an even number.

For more information and practice, go to the following website.

http://www.chemteam.info/SigFigs/Rounding.html