数学题在线解答7.8*6.9+2.6*79.3简便算
答案:4 悬赏:10 手机版
解决时间 2021-02-25 18:11
- 提问者网友：棒棒糖
- 2021-02-24 20:55
数学题在线解答7.8*6.9+2.6*79.3简便算
最佳答案
- 五星知识达人网友：一把行者刀
- 2021-02-24 21:23
7.8×6.9+2.6×79.3
=（2.6×3）×6.9+2.6×79.3
=2.6×20.7+2.6×79.3
=2.6×（20.7+79.3）
=2.6×100
=260
=（2.6×3）×6.9+2.6×79.3
=2.6×20.7+2.6×79.3
=2.6×（20.7+79.3）
=2.6×100
=260
全部回答
- 1楼网友：不想翻身的咸鱼
- 2021-02-25 00:04
vcv
- 2楼网友：duile
- 2021-02-24 22:54
=2.6*3*6.9+2.6*79.3
=2.6*3*(7-0.1)+2.6*79.3
=2.6*(21-0.3)+2.6*79.3
=2.6*20.7+2.6*79.3
=2.6*(20.7+79.3)
=2.6*100
=260
=2.6*3*(7-0.1)+2.6*79.3
=2.6*(21-0.3)+2.6*79.3
=2.6*20.7+2.6*79.3
=2.6*(20.7+79.3)
=2.6*100
=260
- 3楼网友：忘川信使
- 2021-02-24 22:45
7.8×6.9+2.6×79.3
=（2.6×3）×6.9+2.6×79.3
=2.6×20.7+2.6×79.3
=2.6×（20.7+79.3）
=2.6×100
=260
=（2.6×3）×6.9+2.6×79.3
=2.6×20.7+2.6×79.3
=2.6×（20.7+79.3）
=2.6×100
=260
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