用简便方法计算:999*778+333*666

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 10:24:33
用简便方法计算:999*778+333*666用简便方法计算:999*778+333*666用简便方法计算:999*778+333*666999×778+333×666=999×778+333×(3×

用简便方法计算:999*778+333*666
用简便方法计算:999*778+333*666

用简便方法计算:999*778+333*666
999×778+333×666
=999×778+333×(3×222)
=999×778+333×3×222
=999×778+999×222
=999×(778+222)
=999×1000
=999000