(48×5)×125..25×125×(40+8)两道题怎样巧算
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:2024/07/05 19:33:50
(48×5)×125..25×125×(40+8)两道题怎样巧算
![(48×5)×125..25×125×(40+8)两道题怎样巧算](/uploads/image/z/7020656-8-6.jpg?t=%EF%BC%8848%C3%975%EF%BC%89%C3%97125..25%C3%97125%C3%97%EF%BC%8840%2B8%EF%BC%89%E4%B8%A4%E9%81%93%E9%A2%98%E6%80%8E%E6%A0%B7%E5%B7%A7%E7%AE%97)
(48×5)×125=(8×125)×(5×6)=1000×30=30000
25×125×(40+8)=25×(125×8)×(5+1)=25×6×1000=150000
25×125×(40+8)=25×(125×8)×(5+1)=25×6×1000=150000