直接写得数652﹣398= 0.9÷0.01= ﹣= 0.4×2.5=6.8×11﹣6.8= +3÷8= ÷4×÷4= 0.42=
直接写出得数.53+48= 0.7×1.4= 15.7÷3.14= 7﹣4.45=24×= += ﹣= ÷7=
直接写出得数.382﹣297= += ÷2= 3.8+6.2= 8.1÷3×2=×33= 68﹣198= 0.65÷1.3= 75×10%= 0.75﹣(0.75+3.4)=1÷= 1÷0.01= ﹣= +×2= 48×(﹣)=
直接写出得数73+827= 30﹣6.3= 0.4×0.25= 0.06÷0.6=÷12= = ×= 18×(+)=
直接写出得数651﹣105= 0.65+2.35= 0.1×0.03= (0.27+0.9)÷0.9=2﹣= = 64÷0.08= == = 10﹣﹣0.875 =