作业帮680×56+440×68怎么简便运算?999×222+333×334怎么简便运算?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 21:54:55
680×56+440×68怎么简便运算?999×222+333×334怎么简便运算?
680×56+440×68怎么简便运算?999×222+333×334怎么简便运算?
680×56+440×68怎么简便运算?999×222+333×334怎么简便运算?
680×56+440×68
=68×560+440×68
=68×(560+440)
=68×1000
=68000
999×222+333×334
=333×3×222+333×334
=333×666+333×334
=333×(666+334)
=333×1000
=333000
680×56+440×68=680*56+680*44=680*（56+44）=68000
999×222+333×334=333*666+333+334=333*（666+334）=333000
680*56+440*68=680*56+44*680=680*(56+44)=68000
999*222+333*334=333*666+333*334=333*(666+334)=333000