问题
解答题
(1)2001×20002000-2000×20012001; (2)
|
答案
(1)2001×20002000-2000×20012001;
=2001×2000×1000-2000×2001×1001
=2001×2000×
=-2002000;
(2)原式=135×271+136 136×271-135
=1352+1362 1352+1362
=1
(1)2001×20002000-2000×20012001; (2)
|
(1)2001×20002000-2000×20012001;
=2001×2000×1000-2000×2001×1001
=2001×2000×
=-2002000;
(2)原式=135×271+136 136×271-135
=1352+1362 1352+1362
=1