6km63m=.......km 9dam8m=...dam 9hm22m=...hm 1,23hm=...m 0,3872km...m 1,23dam=...m 6km20m=...km 1km313m=....km 10km9m=...km 4,1hm=....m 2,03dam=...m 2,45=....m 2:diền dấu, bé, bằng 2km3m.......0,999km : 2km123m.......2,123km 4337m......47hm : 0,26km.....3km 4,3km.......3,444hm

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