999乘22加333乘34怎么巧算
问题描述:
999乘22加333乘34怎么巧算
答
999*22+333*34=999*22+(333*3)*11+333=999*33+333=(1000-1)*33+333=33000-33+333=36000
999乘22加333乘34怎么巧算
999*22+333*34=999*22+(333*3)*11+333=999*33+333=(1000-1)*33+333=33000-33+333=36000