Explicație pas cu pas:
a)135 m + 50 dm= 135 m + 5 m = 140 m
b)37 hm + 3,5 km= 3,7km + 3,5 km = 7,2 km
c)3/8 km +7/2 dam + 5/4 hm= 3000/8 m + 70/2 m + 5/4 m = 1500/4 m + 140/4 m + 5/4 m = 1645/4 m = 411,25m
d)17 m + 70 cm= 1,7dam + 0,7 dam = 2,4 dam
e)34 dm + 8 m = 3,4m + 8m = 11,4 m
f)530 mm + 6 dm = 0,53 m + 0,6m = 1,13m
g)3/4 m + 2/5 dm + 0,5 cm= 300/4cm + 20/5 cm + 5/10 cm = 75cm + 4cm + 0,2cm = 79,2 cm
h)65 hm + 3 km= 6,5 km + 3 km = 9,5 km