2. Transformă şi efectuează: a) 4 dam + 60 m = ? m; 36 dam + 180 m = ? m; 148 dam + 80 m = ? dam; b) 18 km - 28 hm = ? hm; 57 dam-130 m = ? m; 72 hm-37 dam = ? dam; c) 4 m +7 dm = ? dm = ? cm; 80 dm+ 6 m = ? cm = ? dm; 200 cm + 140 cm = ? cm = ? dm; d) 24 hm x 2 = ? hm = ? dam; 140 dam x 3 = ? dam = ? m; 72 hm x 5 = ? hm = ? km; 4 hm + 60 dam = ? dam; ? dam; 280 hm + 300 m 3 800 dam + 480 hm = ? km. 148 km - 69 hm = ? hm; 1 250 dam + 68 hm = ? hm; 325 km + 60 hm = ? km. 6 m 7 dm + 40 dm = ? dm = ? cm; 8 dm 35 cm - 15 cm = ? cm = ? mm; 7 m 8 dm- 60 dm = ? dm = ? cm. 963 hm: 3 = ? hm = ? dam; 684 km : 6 = ? hm = ? dam; 720 dam: 9 = ? dam = ? hm. ​