4.8m3=dm3
3200cm3=dm3
5600dm3=m3
3250mL=L
1.45dm3=L=mL
7× 5× ×4
64÷0.8= 200÷1000= 32= 0.52=
23= 2.4÷0.8= 0.25×0.4= 0.8×0.8÷0.8×0.8=