如题所述
第1个回答 2020-03-04
计算如下:
=(100+1)*99
=9900+99
=9999
=(100+1)*99
=9900+99
=9999
第2个回答 2020-03-04
101×99
=(100+1)×(100-1)
=100²-1²
=10000-1
=9999
=(100+1)×(100-1)
=100²-1²
=10000-1
=9999
第3个回答 2020-03-04
101X99
=(100+1)x99
=100x99+99
=9900+99
=9999本回答被网友采纳
=(100+1)x99
=100x99+99
=9900+99
=9999本回答被网友采纳
第4个回答 2020-03-04
(100+1)×99
=100×99+99
=9999
=100×99+99
=9999