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32x2.5x1.25脱式计算

32x2.5x1.25脱式计算 =8x4x2.5x1.25 =(8x1.25)x(4x2.5) =10x10 =100

32X0.25X1.25脱式计算 32X0.25X1.25 =(0.25*4)*(1.25*8) =1*10 =10

原式=32x2+32x12 =32x(2+12) =32x14 =(30+2)x14 =30x14+2x14 =420+28 =448

解:32X168一279 =(30十2)X168一279 =5040十336一279 =5376一280十1 =5096十1 =5097

25x18x32x225 =25×18×4×2×4×25×9 =(25×4)×(25×4)×(18×2×9) =100×100×324 =3240000 希望对你有帮助!

32x0.25x12.5x0.2x5 =(4x0.25)x(8x12.5)x(0.2x5) =1x100x1 =100

32X18一28x11 =576-308 =268

=300-1-32x(20-1) =300-32x20+32x1+1 =300-640+33 =33-340 =-307

12.48÷(32×8分之3+3.6) =12.48÷(12+3.6) =12.48÷15.6 =0.8 不能简便计算。

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