问题
计算题
计算:
(1)20092﹣2008×2010;
(2)1022.
答案
解:(1)20092﹣2008×2010
=20092﹣(2009﹣1)×(2009+1)
=20092﹣(20092﹣1)
=20092﹣20092+1
=1;
(2)1022
=(100+2)2
=1002+2×100×2+4
=10000+400+4
=10404.
计算:
(1)20092﹣2008×2010;
(2)1022.
解:(1)20092﹣2008×2010
=20092﹣(2009﹣1)×(2009+1)
=20092﹣(20092﹣1)
=20092﹣20092+1
=1;
(2)1022
=(100+2)2
=1002+2×100×2+4
=10000+400+4
=10404.