25+68+125简算如下:25+68+125=(25+125)+68=150+68=218
25+68+125简算如下: 25+68+125=(25+125)+68=150+68=218
25+68+125简便计算25+68+125=25+70-2+100+25=100+25+25+70-2=100+50+70-2=100+120-2=220-2=218