... 5km2 34ha = 53 4hab) 16,5m2 = 16 m2 = 16m2 50 dm2 c) 6,5km2 = 6 km2 = 6km2 50 ha 5 10000 5 10042100 56 1002310023100 5 100 50 00100001100 15 10034100 50 100 50 100aùp sọỳ: ... 2 m = 2,34m 50 6cm = 50 0cm + 6cm = 5m 6cm = 5 m = 5, 06m34dm = 30dm + 4dm = 3m 4dm = 3 m = 3,4m- GV chỉỵa bi v cho âiãøm HS.Phán têch 3 15 ta âỉåüc: 3m 1dm 5cmVáûy 315cm = 3,15mBi 3- GV ... 68,72 25, 37 75, 5 60 29,91 8,64 30,26 12, 45 38,81 16,73 45, 24 47 ,55 Bi 2- GV u cáưu HS âc âãư bi.a) x + 4,32 = 8,67 x = 8,67 - 4,32 x = 4, 35 b) 6, 85 + x = 10,29 x = 10,29 - 6, 85 x = 3,44c)...