78*25+22*25怎样用简便方法做
问题描述：
78*25+22*25怎样用简便方法做
答
78*25+22*25
=(78+22)*25
=100*25
=2500
78*25+22*25怎样用简便方法做
78*25+22*25
=(78+22)*25
=100*25
=2500