99×778+33×666的超简便计算
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/07/19 00:09:27
99×778+33×666的超简便计算
![99×778+33×666的超简便计算](/uploads/image/z/17937122-50-2.jpg?t=99%C3%97778%2B33%C3%97666%E7%9A%84%E8%B6%85%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
99×778+33×666
=99×778+99×222
=99×(778+222)
=99×1000
=99000
再问: 还有什么方法 &&&快 ………… ———————— ++++++++++~~~ :::;;;::‘“”’“”“‘’”“‘”’
再答: 99×778+33×666 =33×2334+33×666 =33×(2334+666) =33×3000 =99000
再问: 还有吗??? 好像还难算
再答: 99×778+33×666 =9×11×778+9×11×222 =9×11×(778+222) =99×1000 =99000
=99×778+99×222
=99×(778+222)
=99×1000
=99000
再问: 还有什么方法 &&&快 ………… ———————— ++++++++++~~~ :::;;;::‘“”’“”“‘’”“‘”’
再答: 99×778+33×666 =33×2334+33×666 =33×(2334+666) =33×3000 =99000
再问: 还有吗??? 好像还难算
再答: 99×778+33×666 =9×11×778+9×11×222 =9×11×(778+222) =99×1000 =99000