来自沈胜宏的问题
0.42×0.5=0.51÷1.7=5.2÷0.13=99×1.01=13.5-2.8-7.2=32.8+19=
0.42×0.5=0.51÷1.7=5.2÷0.13=99×1.01=13.5-2.8-7.2=32.8+19=
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2020-12-01 06:54
0.42×0.5=0.51÷1.7=5.2÷0.13=99×1.01=13.5-2.8-7.2=32.8+19=
0.42×0.5=0.51÷1.7=5.2÷0.13=99×1.01=13.5-2.8-7.2=32.8+19=
①0.42×0.5=0.5×2×0.21=1×0.21=0.21②0.51÷1.7=5.1÷17=0.3③5.2÷0.13=520÷13=40④99×1.01=99×(1+0.01)=99×1+99×0.01=99+0.99=99.99⑤13.5-2.8-7.2=13.5-(2.8+7.2)=13.5-10=3.5⑥32.8+19=(19+1)+(...