Posted by Amy on Friday, August 26, 2011 at 5:05pm.
The least accurate measurement is the 13.2 m in this case. Its accuracy is only +/- 0.05.
Therefore the difference should be quoted with the same number of significant digits. In this case, it is the first number after the decimal point.
addition&subtraction= round to least number of decimal places
multiplication&division=round to least number of significant figures present.
Suppose you are playing ice hockey in the middle of a totally frictionless frozen pond. How can you move yourself to the edge of the pond ?
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