几个简便计算问题!999*778+333*66614*44+12*28+32*14
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:2024/08/12 01:26:14
几个简便计算问题!
999*778+333*666
14*44+12*28+32*14
999*778+333*666
14*44+12*28+32*14
![几个简便计算问题!999*778+333*66614*44+12*28+32*14](/uploads/image/z/17180443-19-3.jpg?t=%E5%87%A0%E4%B8%AA%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E9%97%AE%E9%A2%98%21999%2A778%2B333%2A66614%2A44%2B12%2A28%2B32%2A14)
999×778+333×666
=999×778+333×(3×222)
=999×778+333×3×222
=999×778+999×222
=999×(778+222)
=999×1000
=999000
14*44+12*28+14*32
=14*(44+24+32)
=14*100
=1400
=999×778+333×(3×222)
=999×778+333×3×222
=999×778+999×222
=999×(778+222)
=999×1000
=999000
14*44+12*28+14*32
=14*(44+24+32)
=14*100
=1400