计算:1.725+2.725+3.725+4.725+.60.725
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 11:43:00
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计算:1.725+2.725+3.725+4.725+.60.725
计算:1.725+2.725+3.725+4.725+.60.725
计算:1.725+2.725+3.725+4.725+.60.725
解析,
1.725+2.725+3.725+4.725+……+60.725
=(1+2+3+……+60)+(0.725+0.725+……+0.725)
=(1+60)*60/2+0.725*60
=1830+43.5
=1873.5