来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/09/22 17:28:51
36.5X2.5+2.65X75(简便计算)要算式和过程
36.5X2.5+2.65X75
=36.5X2.5+(2.5+0.15)X(63.5+11.5)
=36.5X2.5+63.5X2.5+2.5X11.5+0.15X75
=(36.5+63.5)X2.5+2.5X11.5+2.5X0.15X30
=250+2.5X(11.5+4.5)
=250+2.5X16
=250+2.5X4X4
=250+40
=290