直接写出得数．
200÷4= 40×9= 32×20= 720÷9=
0×10= 40×20= 3.5+2.5= 11×80=
45×10= 490÷7= 640÷8= 240÷6=
0÷32= 1.1+2.1= 20×30= 4.2﹣2.1=
直接写得数
6.3+3.7= 9﹣1.8= 1.4×0.5= 0.49÷0.7= 3.9﹣0.39=
9.2×0.01= 3×0.2×0.5= 0.2÷0.125= 1﹣0.2÷0.2=（1.42+2.91）×0=
0.24+0.56= 6﹣0.32= 0.15×3= 8.4÷4=
0.1÷0.01= 0.028÷4= 0.1×0.1﹣0.01= 0.25×1.3×0.4=
2×5= 4.2﹣1.8= 12.5×8= 3.54×10=
70×50= 2.15+1.85= 0÷0.25= 2÷0.4=
9÷6= 7x﹣2.8x=
口算：
2÷5= 8.8+0.12= 8.8+1.2= 0.36×5=
125×8= 9.7﹣0.97= 1.2×0.5= 9.5÷0.95=
算一算，比一比
1.24+0.56= 0.8﹣0.51= 48×0.2= 3.84÷1.2=
12.4+0.56= 0.08﹣0.056= 0.48×2= 0.384÷0.12=