1. 15м^2 2см^2 - 9м^2 5дм^2 27см^2= 15,0002 м^2 - 9,0527м^2 = = 5,9475 м^2 = 594,75 дм^2. 2. 12дм^3 - 3дм^3 4см^3= 12 дм^3 - 3,004 дм^3 = 8,996 дм^3