Tolong donk bantu saya

1200 m – 0,15 m + 0,02 m = 1200,17 m
1500 dam + 20 dam – 0,3 dam = 1519,7 dam
5250 m + 3,5 m + 40 m = 5293,5 m
1600 m – 200 m + 20 m = 1420 m
60000 cm + 2000 cm + 15 cm = 62015 cm