3.5÷0.05=70。0.6×0.7=0.42。3÷6=0.5；0.48÷0.6=0.8。1.5×0.6=0.9。0.56÷0.7=0.8。1÷0.2=5；0.7×2.1=1.47。4.5×0.4=1.8。4÷5=0.8；8－6.9=1.1；0.45×2.5＝1.125。0.8×1.25＝1。0.3×3.6＝1.08。0.3×0.3＝0.09。10×0.07＝0.7。0.3×1.4＝0.42。0.05×7＝0.35。0.92×0.4＝0.368。0.2×0.26＝0.052。0.14×4＝0.56。0.02×0.1＝0.002。1.2×0.3＝0.36。0.2×0.4＝0.08。8.2＋1.8＝10。100－35.22＝.78。2.3×4＝9.2；2.5×0.4＝1；