Question 520274
Explain which is more accurate: measuring to the 
nearest millimeter or to the nearest eight of an inch.
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A millimeter is smaller.
1 inch = 25.4 mm
1 inch = eight 8ths of an inch
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That has no effect on accuracy, tho, only resolution.
A person taking measurments in mms can be careless or drunk, and be off by a lot.