30-29.02=+=0.4×0.4=1÷0.1-1×0.1=÷=×=

发布时间:2020-08-08 06:21:38

30-29.02=+=0.4×0.4=1÷0.1-1×0.1=÷=×=

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解:30-29.02=0.98+=0.4×0.4=0.161÷0.1-1×0.1=9.9÷=6×=故
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