“333×23+111×31”这个题目怎么简便计算?用了乘法什么律?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 11:10:31
![“333×23+111×31”这个题目怎么简便计算?用了乘法什么律?](/uploads/image/z/340496-8-6.jpg?t=%E2%80%9C333%C3%9723%EF%BC%8B111%C3%9731%E2%80%9D%E8%BF%99%E4%B8%AA%E9%A2%98%E7%9B%AE%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%3F%E7%94%A8%E4%BA%86%E4%B9%98%E6%B3%95%E4%BB%80%E4%B9%88%E5%BE%8B%EF%BC%9F)
“333×23+111×31”这个题目怎么简便计算?用了乘法什么律?
“333×23+111×31”这个题目怎么简便计算?
用了乘法什么律?
“333×23+111×31”这个题目怎么简便计算?用了乘法什么律?
333×23+111×31
=111×3×23+111×31
=111×69+111×31
=111×(69+31)(分配律)
=111×100
=11100
333×23+111×31
=111×3×23+111×31
=111×69+111×31
=111×(69+31)
=111×100
=11100
333×23+111×31=111×3×23+111×31
=111×(23×3+31)
=111×100
=11100
上题等于111X3X23+111X31=111X(3X23+31)=111X(69+31)=111X100=11100
333×23+111×31
=111×(3×23)+111×31
=111×(31+3×23)
=111×100
=11100
333*23+111*31
=111*(3*23)+111*31
=111*69+111*31
=111*(69+31)
=111*100
=11100
111*100=11100