www.5129.net > 37乘以98加74简便方法

37乘以98加74简便方法

37*98+74=37*98+37*2=37*(98+2)=37*100=3700

37x98+72=37x(100-2)+72=3700-74+72=3698 请及时采纳

37*98=37*100-2=37*100-37*2=3700-74=3626

37x98=37x(100-2)=37x100-37x2=3700-74=3626

=37x98+37x2=37x(98+2)=37x100=3700

74x98+74+74=74x98+74x1+74x1 运用乘法分配律=(98+1+1)x74=100x74=7400 祝学习进步.

37x100-37x2=3700-74=3626

三十七加九十八=35+2+98=35+100=135

37*99+37=37*(99+1)=37*100=3700.请采纳,谢谢

37乘99加37 =37*99+37 =37*(99+1) =37*100 =3700

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