Asked by Amy
Can someone explain this rule in simple english please? "Rule for addition and subtraction: The rightmost significant figure in a sum or difference will be determined by the least accurate measurement."
Example: 18.56 m
- 13.2 m
__________
5.36 m = 5.4 m
Example: 18.56 m
- 13.2 m
__________
5.36 m = 5.4 m
Answers
Answered by
drwls
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.
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.
Answered by
Davis
addition&subtraction= round to least number of decimal places
multiplication&division=round to least number of significant figures present.
multiplication&division=round to least number of significant figures present.
Answered by
brandy
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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