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Q: Significant figures adding and subtracting
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How do you determine the number of significant figures when adding or subtracting measurements?

When adding or subtracting measurements, the number of significant figures in the result should match the measurement with the least number of decimal places.


How do you decide how many significant figures the answer should have when you are adding and subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


How do you determine how many significant figures to keep in an answer obtained by adding and subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


What determines the number of allowed significant digits when adding or subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


What is the rule for significant figures when adding or subtracting decimals?

When adding and/or subtracting, your answer can only show as many decimal places as the measurement having the fewest number in the decimal places.


What are the rules for significant figures when multiplying and adding numbers?

When multiplying or dividing numbers, the result should have the same number of significant figures as the factor with the fewest significant figures. When adding or subtracting numbers, the result should have the same number of decimal places as the number with the fewest decimal places.


What are the rules for determining significant figures when adding and multiplying measurements?

When adding or subtracting measurements, the result should have the same number of decimal places as the measurement with the fewest decimal places. When multiplying or dividing measurements, the result should have the same number of significant figures as the measurement with the fewest significant figures.


Why are significant figures used and how are significant figures obtained?

Significant figures are used to receive a more accurate number. To obtain the number you you multiply or divide the quantities, leave as many significant figures in the answer as there are in the quantity with the least number or significant figures. If adding or subtracting quantities, leave the same number of decimal places in the answer as there are in the quantity with the least number of decimal places


What are the rules for determining significant figures in calculations involving addition and multiplication?

When adding or subtracting numbers, the result should have the same number of decimal places as the number with the fewest decimal places. When multiplying or dividing numbers, the result should have the same number of significant figures as the number with the fewest significant figures.


Significant figures of 5.7 plus 3.2?

The sum of 5.1 and 3.2 is 8.9 with two significant figures. When adding or subtracting numbers, the result should have the same number of decimal places as the number with the fewest decimal places, which in this case is 3.2.


How to round significant figures when adding numbers?

When adding numbers with different significant figures, round the final answer to match the least number of decimal places in the original numbers.


When you're adding numbers how many significant numbers are there?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.