口算
1.6÷0.4= 0.77×1= 7.5÷3= 1.5×6=
0.125×8= 31.4÷3.14= 1.4×10= 0.1×6.4=
3.6×0.2= 1.5÷1.5= 2.8÷0.4= 2.3+1.8=
10÷0.1= 4.16÷1= 0.45×0.1= 0.2×11=
3.6÷2= 1.2÷0.02= 72÷0.9= 25×0.4=
口算
1.6÷0.4= 0.77×1= 7.5÷3= 1.5×6=
0.125×8= 31.4÷3.14= 1.4×10= 0.1×6.4=
3.6×0.2= 1.5÷1.5= 2.8÷0.4= 2.3+1.8=
10÷0.1= 4.16÷1= 0.45×0.1= 0.2×11=
3.6÷2= 1.2÷0.02= 72÷0.9= 25×0.4=