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12.6×7.6×2.32÷1.9÷1.4÷2.9的简便算法

原式 =(12.6÷1.4)x(7.6÷1.9)x(2.32÷2.9) =9x4x0.8 =36x0.8 =28.8 供参考。

=12.6/1.4*(7.6/1.9)*(2.32/2.9) =9*4*0.8 =36*0.8 =144/5=28.8

接下

1.44

1.72X1.4÷1.72X1.4 =1.72÷1.72X1.4X1.4 =1X1.4X1.4 =1.96

=1.72除以1.72乘以1.4乘以1.4=1.96

=4.06+28.8 =32.86

不详

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