Deci means one tenth
1 dm = 1/10 m = 0,1 m
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The prefix deci means 1/10.
The deci- prefix means one tenth (1/10 = 0.1) The centi- prefix means one hundredth (1/100 = 0.01) Therefore for the same unit, a deci- one is larger than a centi- one. eg 1 decimetre is larger than 1 centimetre since 1 dm = 0.1m > 0.01m = 1 cm.
The metric prefix for one tenth is deci.
10
The prefix deci is used to denote one tenth.