如题所述
102乘以99用简算怎么算
方法一:102x99
=(100+2)x99
=100x99+x99
=9900+198
=10098
方法二:102x99
=102x(100-1)
=102x100-102x1
=10200-102
=10098
方法一:102x99
=(100+2)x99
=100x99+x99
=9900+198
=10098
方法二:102x99
=102x(100-1)
=102x100-102x1
=10200-102
=10098
温馨提示:答案为网友推荐,仅供参考
第1个回答 2014-11-03
102×(100-1)=102×100-102×1=10200-102=10098本回答被提问者采纳
第2个回答 2014-11-03
102x99
=100X99+2x99
=9900+198
=10098
=100X99+2x99
=9900+198
=10098
第3个回答 推荐于2018-03-13
102×99
=(100+2)×99
=100×99+2×99
=9900+198
=10098本回答被网友采纳
=(100+2)×99
=100×99+2×99
=9900+198
=10098本回答被网友采纳
第4个回答 2020-05-11
102×99
=(100+2)×99
=100×99+2×99
=9900+198
=10098
=(100+2)×99
=100×99+2×99
=9900+198
=10098