 |
|||||||||||||||
|
|||||||||||||||
|
1.7.2 - Rules for Addition and Subtraction The answer must retain the same number of digits to the right of the decimal point as were present in the value with the fewest number of digits to the right of the decimal point. Question: If you have 3.18 L of water and you add 0.01315 L more. How much water do you end up with? Answer: It is easiest if you look write out the addition problem by aligning the decimal point.
The answer
is 3.19 L; 3 significant figures.
|
||||||||||||||
Section
2.6
 All contents copyrighted © 1996-2006 British Columbia Institute of Technology Chemistry Department - 3700 Willingdon Avenue Burnaby, B.C. Canada V5G 3H2 |