2.5×19.2-12.3×2.5+7.5×6.9递等式等于多少
答案:4 悬赏:70 手机版
解决时间 2021-04-03 03:19
- 提问者网友:王者佥
- 2021-04-02 13:52
2.5×19.2-12.3×2.5+7.5×6.9递等式等于多少
最佳答案
- 五星知识达人网友:旧脸谱
- 2021-04-02 15:24
=2.5×(19.2-12.3)+7.5×6.9
=2.5×6.9+7.5×6.9
=6.9×(2.5+7.5)
=6.9×10
=69
=2.5×6.9+7.5×6.9
=6.9×(2.5+7.5)
=6.9×10
=69
全部回答
- 1楼网友:末日狂欢
- 2021-04-02 18:14
如图
- 2楼网友:三千妖杀
- 2021-04-02 17:02
2.5×19.2-12.3×2.5+7.5×6.9
=2.5×(19.2-12.3)+7.5×6.9
=2.5×6.9+7.5×6.9
=(2.5+7.5)×6.9
=10×6.9
=69
=2.5×(19.2-12.3)+7.5×6.9
=2.5×6.9+7.5×6.9
=(2.5+7.5)×6.9
=10×6.9
=69
- 3楼网友:一秋
- 2021-04-02 16:40
(2.5+7.5)x6.9=69
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