直接算出得数．
7.8×0.5= 3.78÷6= 8.1÷0.9= 98÷0.1= 16.4÷4= 1.92÷0.3=
1.09+9.01= 80×0.25= 1.3﹣0.7= 0.88+0.2= 0.01×800= 2.4×0.5=
直接算出得数．
7.8×0.5= 3.78÷6= 8.1÷0.9= 98÷0.1= 16.4÷4= 1.92÷0.3=
1.09+9.01= 80×0.25= 1.3﹣0.7= 0.88+0.2= 0.01×800= 2.4×0.5=
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