How do you put 1.349582 into 3 significant figures?

1 Answer
Sep 2, 2016

Answer:

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.
#6.764=6.76# rounded to three significant figures.

If the first number to be dropped is 6 or greater, round up.
#6.767=6.77# rounded to three significant figures.

If the first number to be dropped is 5, round so that the result will end with an even number.
#6.765=6.76#

For more information and practice, go to the following website.
http://www.chemteam.info/SigFigs/Rounding.html