7×1.25+6.3×125％-1又1/4

来源：学生作业帮助网编辑：六六作业网时间：2024/12/19 20:56:31

7×1.25+6.3×125％-1又1/47×1.25+6.3×125％-1又1/47×1.25+6.3×125％-1又1/42.7×1.25+6.3×125％-1又1/4=1.25×﹙2.7＋6.3

7×1.25+6.3×125％-1又1/4
7×1.25+6.3×125％-1又1/4

7×1.25+6.3×125％-1又1/4
2.7×1.25+6.3×125％-1又1/4
=1.25×﹙2.7＋6.3－1﹚
=1.25×8
=10