(49+32)乘以(84/6)简便算法
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:2024/07/29 19:46:29
(49+32)乘以(84/6)简便算法
![(49+32)乘以(84/6)简便算法](/uploads/image/z/17098436-20-6.jpg?t=%EF%BC%8849%2B32%EF%BC%89%E4%B9%98%E4%BB%A5%EF%BC%8884%2F6%29%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95)
84÷6=14
(49+32)×14
=(80+1)×14
=80×14+14
=80×(15-1)+14
=80×15-80+14
=1200-80+14
=1120+14
=1134
(49+32)×14
=(80+1)×14
=80×14+14
=80×(15-1)+14
=80×15-80+14
=1200-80+14
=1120+14
=1134