65x(2十35)解:简便计算=65x37=65x(40-3)=65x40-65x3=2600-195=2405祝学习进步.
你好!=35(18+29)=35*47=1645 仅代表个人观点,不喜勿喷,谢谢.
29X(29+1)=29X30=870
29十35一29十35=(29-29)+(35+35)=0+70=70
65x34十34x34十34的简便计算:65x34十34x34十34 =34x(65+34+1) =34x100 =3400 或 65x34十34x34十34 =(65+34+1)x34 =100x34 =3400
29*35-9*35=(29-9)*35=10*35=350
29x34+29x65+29=29x(34+65+1)=29x100=2900 谢谢,请采纳
136x29-65x29+29Ⅹ29简算:=29x(136-65+29)=29x100=29000
58x29+29x42=(58+42)x29=100x29=2900 谢谢,请采纳