Three measurements are made as 18.425 , cm,7. | vedclass

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Question

(A) When adding measurements,the final result should be reported to the same number of decimal places as the measurement with the fewest decimal place

Vedclass · Accepted Answer

$30.6$

Vedclass · Answer

(A) When adding measurements,the final result should be reported to the same number of decimal places as the measurement with the fewest decimal places.Given measurements are $18.425 \, cm$ (three decimal places),$7.21 \, cm$ (two decimal places),and $5.0 \, cm$ (one decimal place).The sum is $18.425 + 7.21 + 5.0 = 30.635 \, cm$.Since the measurement with the fewest decimal places is $5.0 \, cm$ (one decimal place),the final result must be rounded to one decimal place.Rounding $30.635$ to one decimal place gives $30.6 \, cm$.

Three measurements are made as $18.425 \, cm$,$7.21 \, cm$,and $5.0 \, cm$. The addition should be written as ........ $cm$.

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