1200m-(15cm+20mm)=… M

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 + 2 m = 1402 m
60000 cm + 2000 cm + 15 cm = 62015 cm

🙂