4 м^2 = 4*10*10 = 400 дм^2
8 м^2 = 8*100*100 = 80000 см^2
63000 см^2 = 630 дм^2
8100 дм^2 = 81 м^2
5 сут = 5*24 = 120 ч
360 мин = 6 ч
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4 м^2 = 4*10*10 = 400 дм^2
8 м^2 = 8*100*100 = 80000 см^2
63000 см^2 = 630 дм^2
8100 дм^2 = 81 м^2
5 сут = 5*24 = 120 ч
360 мин = 6 ч