题文
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=
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=
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