用简便方法计算:1、7.8×6.9+2.6×79.3 2、24.6×4.6+2.46×44+246×0.1
答案:3 悬赏:40 手机版
解决时间 2021-02-11 23:45
- 提问者网友:流星是天使的眼泪
- 2021-02-11 15:54
用简便方法计算:1、7.8×6.9+2.6×79.3 2、24.6×4.6+2.46×44+246×0.1
最佳答案
- 五星知识达人网友:青灯有味
- 2021-02-11 16:24
7.8×6.9+2.6×79.3
=2.6x3x6.9+2.6x79.3
=2.6x(20.7+79.3)
=2.6x100
=260
24.6×4.6+2.46×44+246×0.1
=24.6x4.6+24.6x4.4+24.6x1
=24.6x(4.6+4.4+1)
=24.6x10
=246
=2.6x3x6.9+2.6x79.3
=2.6x(20.7+79.3)
=2.6x100
=260
24.6×4.6+2.46×44+246×0.1
=24.6x4.6+24.6x4.4+24.6x1
=24.6x(4.6+4.4+1)
=24.6x10
=246
全部回答
- 1楼网友:独钓一江月
- 2021-02-11 17:53
2、24.6*(4.6+44+0.1)
- 2楼网友:七十二街
- 2021-02-11 16:35
1、7.8×6.9+2.6×9.3=7.8*6.9+2.6*3*3.1=7.8*6.9+7.8*3.1=7.8*(6.9+3.1)=78 (题目抄错了)
2、24.6×4.6+2.46×44+246×0.1=2.46*46+2.46*44+2.46*10=2.46*(46+44+10)=24.6
2、24.6×4.6+2.46×44+246×0.1=2.46*46+2.46*44+2.46*10=2.46*(46+44+10)=24.6
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