12×0.712 40÷1.640
3.4÷0.53.4 48÷1.24.8÷0.12
①3.09÷0.25×8
②47.6-7.6÷0.2
③11.75÷0.25÷0.4
④3.25÷[(7.6+1.5)÷7]
12.5×0.8= 0.4×0.05= 9.7÷1= 0×9.5=
3.5×20= 26.8÷4= 8.4÷0.7= 9.6÷16=
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