560/(1.25*0.7)-4.8/5/6简便运算
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560/(1.25*0.7)-4.8/5/6简便运算560/(1.25*0.7)-4.8/5/6简便运算560/(1.25*0.7)-4.8/5/6简便运算=(800×0.7)/(1.25×0.7)-
560/(1.25*0.7)-4.8/5/6简便运算
560/(1.25*0.7)-4.8/5/6简便运算
560/(1.25*0.7)-4.8/5/6简便运算
=(800×0.7)/(1.25×0.7)-4.8/(5×6)
=800/1.25-(0.8×6)/(5×6)
=800/(10÷8)-0.8/5
=(800×8)/10-(0.8×2)/10
=【6400-1.6】/10
=6398.4/10
=639.84
560/(1.25*0.7)-4.8/5/6简便运算
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