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37×25×40简便计算

原式 =(36+1)x25 =36x25+1x25 =9x4x25+25 =9x100+25 =900+25 =925 供参考。

37×25×40 =37×(25×40) =37x100 =3700

=25×4×37=100×7=3700

25×37×40 =25×40×37 =1000×37 =37000

=4×25×0.37 =100×0.37 =37

25x37 =25x36 +25 =(25x4)x9 +25 =100x9+25 =900+25 =925

=25×(4×9+1)+17×2×(25+3) =25×4×9+25×1+17×2×25+17×2×3 =100×9+25+17×50+17×6 =900+25+850+102 =1877

37×35+40×37+25×37 =37×(35+40+25) =37×100 =3700

37×25+37×74+37 =37×(25+74+1) =37×100 =3700

25x4X(37x2)=7400

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