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5.6X69.32+138.64x0.05+69.32x4.3用简便算法?

5.6x69.32+138.64x0.05+693.2x0.43 =5.6x69.32+69.32x2x0.05+69.32x4.3 =(5.6+2x0.05+4.3)x69.32 =10x69.32 =693.2

5.6×69.32+138.64×0.05+693.2×0.43 =5.6x69.32+69.32x0.1+69.32x4.3 =69.32x(5.6+0.1+4.3) =69.32x10 =693.2 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动...

5.6*69.32+138.64*0.05+693.2*0.43 =5.6*69.32+69.32*2*0.05+69.32*10*0.43 =5.6*69.32+69.32*0.1+69.32*4.3 =69.32*(5.6+0.1+4.3) =69.32*10 =693.2

455*7.6+111*2*7.6+32.3*10*7.6=7600 (5.6+0.05*2+4.3)*69.32=693.2

5.6*69.32+138.64*0.05+693.2*0.43 =5.6*69.32+69.32*2*0.05+69.32*10*0.43 =69.32*(5.6+2*0.05+10*0.43) =69.32*(5.6+0.1+4.3) =69.32*10 =693.2

5.6乘69.32+138.64乘0.05+693.2乘0.43 =5.6×69.32+69.32×2×0.05+69.32×10×0.43 =5.6×69.32+69.32×0.1+69.32×4.3 =(5.6+0.1+4.3)×69.32 =10×69.32 =693.2

5.6x69.32+693.2x0.43=9.9x69.32=9.9/2x138.64 9.9/2x138.64+0.05x138.64=9.9/2x138.64+0.1/2x138.64=10/2x138.64=693.2

这个不好简便计算吧! 直接计算即可: 5.4+4.6×0.32 =5.4+1.472 =6.872 【注意先乘除后加减的运算顺序】

5.6*69.32+138.64*0.05+693.2*0.43 =69.32*(5.6+2*0.05+10*0.43) =69.32*(5.6+0.1+4.3) =69.32*10 =693.2

9999*7778+3333*6666 =9999*7778+3333*3*2222 =9999*7778+9999*2222 =9999*(7778+2222) =9999*10000 =99990000 5.6*69.32+138.64*0.05+693.2*0.43 =5.6*69.32+69.32*2*0.05+69.32*10*0.43 =5.6*69.32+69.32*0.1+69.32*4.3 =(5.6+0.1+4.3)*69...

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