①52dm2=m2
②20分=时
③8.04dm3=L=mL
⑴0.53=
⑵52×6=
⑶0.49÷0.7=
⑷1.2×0.03=
⑸11÷12=
⑹12÷0.01=
⑺1.01﹣0.09=
⑻7÷5=
⑴
⑵
⑶