Odpowiedź :
a) 400m²=0,4ha
7 ha+0,4ha=7,4ha
b)5dm³=5l 350ml=0,35l
5l+0,35l=5,35l
c)6h=360min 420s=7min
360min+7min=367min
d)50cm=5dm 650milimetrów=6,5 dm
5dm+6,5dm=11,5dm
e)5km=5000m 400dm=40m
5000m+40m=5040m
a) 400m²=0,4ha
7 ha+0,4ha=7,4ha
b)5dm³=5l 350ml=0,35l
5l+0,35l=5,35l
c)6h=360min 420s=7min
360min+7min=367min
d)50cm=5dm 650milimetrów=6,5 dm
5dm+6,5dm=11,5dm
e)5km=5000m 400dm=40m
5000m+40m=5040m