a) 12 m 50 cm + 13 m 70 cm = 25 m 120 cm = 26,20 m
120 cm = 1 m i 20 cm
b) 32 m 80 cm + 19 m 40 cm = 51 m 120 cm = 52,20 m
120 cm = 1 m i 20 cm
c) 3 km 850 m + 2 km 970 m + 640 m = 5 km 2460 m = 7,46 km
2460 m = 2,46 km
d) 8 km 690 m + 9 km 580 m + 900 m = 17 km 2170 m = 19,17 km
2170 m = 2,17 km
Pozdrawiam :)