直接写出得数．
0.31+0.4= 2.3﹣1.8= 5.65﹣2.1= 6.27+5.13=
32.96÷100= 0.41×1000= 2.1÷100= 0.012×10=
3×1.5= 2.5×4= 0÷0.9= 4÷0.2=
0.56÷0.7= 0.24×5= 0.2×5= 2.1﹣0.87=
3.54﹣3.5= 3.4﹣1.5= 12÷0.6= 8×0.125=
0.7×11= 0.13+1.7= 3.15÷0.5= 0.9÷4.5=
0.2×0.3= 1.2+0.56= 3﹣1.7= 1÷0.25=
78÷1.3= 15÷0.3= 2.1+1.49= 6.24﹣1.5=
1.2×0.3= 6.3÷6.3= 1.6×0.2= 3.7﹣1.2=
4.58﹣3.5= 72.8÷8= 3.5×0.3= 0.25×100=
3.2﹣2= 0.51÷17= 5.3÷0.01= 1.03×3=
2.8+12= 3.5×2= 2.2×0.1= 1﹣0.25=
0.62﹣0.32= 6.3÷0.21= 1.7×10= 0.12×3=
0.45×2= 1.2÷0.3= 1÷2= 4.8×100=
0.25×8= 0.89÷8.9= 17.8+2.2= 0.8÷0.2=
5.79÷0.1= 0.35+0.65= 8.9﹣0.9= 9.2﹣9.2=
3.6÷0.4= 15.15÷15= 0.2×0.3×0.1= 1.34×4×2.5=
0.46+0.54= 0.4×50= 50×0.84×0.2= 3.23×98+3.23×2=
3.1﹣0.45﹣0.55= 1.6÷2= 3.14÷0.314= 8.4÷0.21=
直接写出得数
1﹣0.08= 0.99×8.45×0= 0.63÷7=
0.56÷8= 0.9×0.8= 2.3×0.9=
口算
5.8+3.2= 7.5÷5= 2.3﹣0.23= 1.25×0.8= 3.2+0.08=
2.8×0.5= 3.2×100= 0÷1.5=
