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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÷2.8 3.2×1.4的简便算法 12.6÷2.8 3.2×1.4 =4.5+4.48 =8.98 直接计算 没有简算

原式 =(7.6x2.8+1.4x4x1.9-2.8x1.4)÷2.5x4 =(7.6x2.8+1.4x7.6-2.8x1.4)÷2.5x4 =[7.6x(2.8+1.4)-2.8x1.4]÷2.5x4 =(7.6x4.2-2.8x1.4)÷2.5x4 =(7.6x3x1.4-2.8x1.4)÷2.5x4 =(22.8x1.4-2.8x1.4)÷2.5x4 =20x1.4÷2.5x4 =20÷2.5x1.4x4 =8x1.4x4 =11.2x4...

1.44

1.4×2.9-1.38÷0.6=1.4×3-1.4*0.1-13.8÷6=4.2-0.14-2.3=1.9-0.14=1.76

6.3÷1.4 =6.3/(0.7*2) =6.3/0.7/2 =9/2 =4.5

=1.72除以1.72乘以1.4乘以1.4=1.96

18.9-18.9÷1.4 =18.9-14÷1.4-4.9÷0.7÷2 =18.9-10-3.5 =5.4

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