102x99的简便计算 102x99的简便计算有两种:算法一:102*99=(100+2)*99=100*99+2*99=9900+198=10098;算法二:102*99=102*(100-1)=102*100-102*1=10200-1... yuqi233 /生活 /2022-08-24 /282 阅读