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5.7%1.9x0.2➗7.6怎么简便运算

12.6x7.6x2.32➗1.9➗1.4➗2.9如何用简便计算? 12.6x7.6x2.32➗1.9➗1.4➗2.9 =(12.6÷4)*(7.6÷1.9)*(2.32÷2.9) =3.15*4*0.8 =10.08

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