Question

9m2 7 dm2 = dm2

5,34 km2 = dam2

Answer 1

9m² 7dm²= 907dm²

5,34km²= 53400 dam²

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Answer 2

trả lời :

9m² 7 dm² = 907 dm²  ( 9m² = 900 dm² ; ta lấy 900 + 7 = 907 dm² )

5,34 km² = 53400 dam²  ( 1 km² = 10000 dam² ; ta lấy : 5,34 x 10000 = 53400 dam² )

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