666*333+778*999
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/16 02:49:20
666*333+778*999
简便运算
简便运算
![666*333+778*999](/uploads/image/z/7299566-62-6.jpg?t=666%2A333%2B778%2A999)
先拆后提取
666*333+778*3*333
=666*333+2334*333
=(666+2334)*333
=3000*333
=999000
666*333+778*3*333
=666*333+2334*333
=(666+2334)*333
=3000*333
=999000