求啊!!!今天必答哦!!!
101×101-101×2
=101*(101-2)
=(100+1)*(100-1)
=100*100-1*1
=9999
=101*(101-2)
=(100+1)*(100-1)
=100*100-1*1
=9999
温馨提示:答案为网友推荐,仅供参考
第1个回答 2011-05-05
101×101-101×2
=101x(101-2)
=101x99
=(100+1)x99
=100x99+1x99
=9900+99
=9999
=101x(101-2)
=101x99
=(100+1)x99
=100x99+1x99
=9900+99
=9999
第2个回答 2011-05-05
=101×101-101-101
=101×(101-1)-100-1
=10100-100-1
=10000-1=9999
写的比较详细的,其实很简单的
=101×(101-1)-100-1
=10100-100-1
=10000-1=9999
写的比较详细的,其实很简单的
第3个回答 2011-05-05
原式=101*(101-2)=101*99=(100+1)*(100-1)=100*100-1=9999
第4个回答 2011-05-05
101×101-101×2
=101x(101-2)
=101x99
=(100+1)x99
=100x99+1x99
=9900+99
=9999
=101x(101-2)
=101x99
=(100+1)x99
=100x99+1x99
=9900+99
=9999