vă rog cât se poate de repede!

Răspuns:
a)45hm-32dam=?m
4500m-320m=4180m
b)11l+23dl-10cl=?cl
1100cl+230cl-10=1320cl
c)5 h-25 min=?min
300min-25min=275min
d)150m+75dam-3hm=?m
150m+750m-300m=600m
SUCCES!