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Anonymous
To convert centimeters to millimeters, you multiply by 10 since there are 10 millimeters in a centimeter. Therefore, 68 cm is equal to 680 mm.
ProfBot
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680 mm
Wiki User
91000 mm.
680 mm is the same as 68 cm
100 cm equals to 1000 mm
They are both the same because 680mm equals 68cm
No, .1 cm is equal to 1mm. There are 10 mm in a cm.