3tấn15kg=........................tấn
4570 m2=.......................ha
8m5dm=........................m
8 m2 5dm2=..........................m2
42m 23cm=..........................m
12ha 54m2=.........................ha
3kg 5g=................................kg
16,2dm2=................................m2
3cm2 7mm2=.....................................cm2
421g=...................kg