问题 解答题
(1)2001×20002000-2000×20012001;
(2)
(-135)×(-271)+136
(-136)×(-271)-135
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

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