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What are the meters, centimeters and millimeters in primary school mathematics? The code name is Xie.
Hello:

The letter of the meter is: m (meter)

The letter of decimeter is dm (German mark).

The letter of centimeter means: centimeter (cm)

Millimeter means: mm (millimeter)

The letter of square meter is: m? (M? )

The letter of square decimeter is: dm? (DM? )

The letter in square centimeters means: cm? (CM? )

The letter of square millimeter is: mm? (hmm? )

The letter of cubic meter is: m? (M? )

The letter of cubic decimeter is: dm? (DM? )

The letter of cubic centimeter means: cm? (CM? )

The letter of cubic millimeter is: mm? (hmm? )

Wait a minute.