33x34+34x35+35x36+36x37+37x38= 怎么计算简便得数是多少谢谢

如题所述

第1个回答 2012-08-29

33x34+34x35+35x36+36x37+37x38

=34x(33+35)+36x(35+37)+37x38
=34x68+36x72+37x38
=2312+2592+1406
=6310本回答被提问者和网友采纳

第2个回答 2012-08-29

33x34+34x35+35x36+36x37+37x38
=34x(33+35)+36x(35+37)+37x38
=34x68+36x72+37x38

=34(70-2)+36(70+2)+37(40-2)
=2380+2520+1480-2*(34-36+37)
=6380-70
=6310

相似回答

小学奥数题答：第一:可化为:33x34+34x35+35x36+36x37 =33x35-33+34x35+35x36+35x37+37 =(33+34+36+37)x35+37-33 =4904 第二:72化为:2x2x2x9 也就是A275x275B要能被8x9整除...A275不能被2整除..所以275B就要被8整除 B=2 ...接下来很简单了,自己做吧 ...

33x34+34x35+35x36+36x37+37x38= 怎么计算简便 得数是多少 谢谢

33x34+34x35+35x36+36x37+37x38= 怎么计算简便得数是多少谢谢