直接写出得数．
0.5×0.8= 0.03+1.7= 0.63÷0.07= 2.5×3.1×0.4=
4÷0.01= 1﹣0.66= 7.2×0.6= 0.2×0.2÷0.2×0.2=
直接写出得数．
0.5×0.8= 0.03+1.7= 0.63÷0.07= 2.5×3.1×0.4=
4÷0.01= 1﹣0.66= 7.2×0.6= 0.2×0.2÷0.2×0.2=
粤公网安备 44130202000953号