2 × c = 800 km
c = 800 : 2
c = 400
456 m + a = 543 m
a = 543 m - 456 m
a = 87 m
435 cm - b = 326 cm
b = 435 cm - 326 cm
b = 109 cm
360 dm : f = 10 dm
f = 360 dm : 10 dm
f = 36 dm
e - 65 m = 324 m
e = 324 m + 65 m
e = 389 m
h + 567 dam = 984 dam
h = 984 dam - 567 dam
h = 417 dam