SME
Grade 9 Math · Problem type
Choosing a level of accuracy
Use this for “Which unit and how much accuracy fit this measurement?”
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To what accuracy would you measure it?
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Assumptions
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Measure only as precisely as the use needs: a part that must fit needs millimeters, a trip needs kilometers.
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A finer unit than the job needs adds digits nobody can use; a coarser one leaves out what matters.
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A product to the right significant figures
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Solving linear and compound inequalities
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