78.6-0.786×25+75％×21.4）÷2001

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：2024/11/18 05:05:41

（78.6-0.786×25+75％×21.4）÷2001
=（78.6-78.6×0.25+75％×21.4）÷2001
=（78.6×0.75+0.75×21.4）÷2001
=（(78.6+21.4）×0.75）÷2001
=（100×0.75）÷2001
=75/2001
=25/667

78.6-0.786×25+75％×21.4）÷2001 （1）（78.6－0.786×25＋75%×21.4）÷15×2001 简便运算（78.6—0.786×25+75%×21.4）÷15×2001 .（78.6—0.786×25+75%×21.4）÷15×2001= (78.6——0.786乘以25+75%乘以21.4）除以15乘2001 （78.6-0.786×25十75%×21.4）÷15×2011=______．（78.6-0.786×25+75%×21.4）÷15×1997=______． 78.6—0.786*25+75%*21.4 (78.6-0.786/25+75%/21.4)*15/2011 （78.6-0.786*25+0.75*21.4)除15*2001 78.6-0.786*25+0.75*21.4 (78.6-0.786*25+75%*21.4)*1997 如何计算?