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37×25×40简便计算

37×25×40 =37×(25×40) =37x100 =3700

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

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

=25×4×37=100×7=3700

25×37×40 =25×40×37 =1000×37 =37000

=4×25×0.37 =100×0.37 =37

=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

用简便方法计算37×25+268÷67 37×25+268÷67 =36×25+25+4 =900+25+4 =929.

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

简便计算 25×37+75×21 =25×(37+3×21) =25×100 =2500

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