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简便运算:-100x1/8-0.125x35.5+14.5x(-12.5%).

来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/12 22:24:47
简便运算:-100x1/8-0.125x35.5+14.5x(-12.5%).
简便运算:-100x1/8-0.125x35.5+14.5x(-12.5%).
-100x1/8-0.125x35.5+14.5x(-12.5%)
原式=-100*(1/8)-(1/8)*35.5+14.5*(-1/8)
=-100*(1/8)-(1/8)*35.5-14.5*(1/8)
=(1/8) *(-100-35.5-14.5)
=(1/8)*(-150)
=-150/8
=-75/4