4.5÷0.13=
0.49×2.88=
1.6÷0.01= 0÷7.12= 12.3÷6= 1.9÷1=
0.25×0.4÷0.25×0.4= 4×(1.5+0.25)=
0.7×0.3= 6.4÷0.8= 250×0.04= 0.3+4.44=
5.5÷1.1= 2÷0.4= 0.27÷0.9= 0.1﹣0.02=