(78.6-0.786*25+75%*21.4)*1997
=(78.6×1-78.6×0.25+0.75×21.4)×1997
=[78.6×(1-0.25)+0.75×21.4]×1997
=(78.6×0.75+21.4×0.75)×1997
=0.75×(78.6+21.4)×1997
=75×1997
=149775
(78.6-0.786*25+75%*21.4)*1997 如何计算?
1个回答
相关问题
-
(78.6-0.786*25+0.75*21.4)/15*1997
-
（78.6-0.786×25+75%×21.4）÷15×1997=______．
-
78.6-0.786*25+0.75*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+75％×21.4）÷2001
-
78.6+0.214*25+75%*21.4简便计算
-
脱式计算:78/0.25/0.4
-
5.75加4.25乘2加78简便 0.75乘18除0.15减6.8简便
-
88+4+5+54+6+89+6+546+46+5+3+54+6+4645+3+1+78+6+78+9+4+56+786