Report - CALCUL MENTAL Conversions dunités daire 1 5 m 2 2 125 dm 2 3 4,5 hm 2 4 0,00567 m 2 5 2 500 000 m 2 6 0,5 km 2 7 8 000 cm 2 8 630 a 9 5 000 ha 10 0,00015.

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