25×0.75-(-25)×0.5+25×(-0.25)要过成

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/04 18:05:50
25×0.75-(-25)×0.5+25×(-0.25)要过成25×0.75-(-25)×0.5+25×(-0.25)要过成25×0.75-(-25)×0.5+25×(-0.25)要过成25×0.75

25×0.75-(-25)×0.5+25×(-0.25)要过成
25×0.75-(-25)×0.5+25×(-0.25)
要过成

25×0.75-(-25)×0.5+25×(-0.25)要过成
25×0.75-(-25)×0.5+25×(-0.25)
=75X0.25+50X0.25-25X0.25
=100X0.25
=25