0.1×208= 7.2÷36= 4.8÷16= 1.3×50=
0.5×20= 0.81÷0.09= 4.2÷4= 0.98÷7=
0.39÷1.3= 2.5×40= 4.7×2= 0.4×0.5=
直接写得数．
3×5= 12.5×8= 5.4÷9=
10÷0.1= 0.6×0.2= 4.2÷0.7=
8×0.04= 2.4÷0.03= 0÷2.43=
6.6÷10= 9×0.8= 1×10.2=
6.4×0.5= 1.44÷0.2= 36÷0.6= ．
口算
0.25×4= 3.02×0.2= 100÷0.8= 3×1.2=
3.14+0.56= 25×8= 36÷1.2= 10﹣0.9=
口算
3.4÷2= 0.48÷6= 4.6÷0.23= 1.4×0.5=
6.8÷4= 0.72÷12= 8×1.01= 5.2÷13=
口算
8×5.1= 1.5÷0.03= 0.9÷0.9=
4.2×3= 6.3+7= 1.5÷0.3=