30厘米等于( )米,8分米等于( )米?

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30厘米等于( )米,8分米等于( )米?
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30厘米等于( )米,8分米等于( )米?
30厘米等于( )米,8分米等于( )米?

30厘米等于( )米,8分米等于( )米?
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