5.5乘9.9加9.9怎样简便计算？
答案:6 悬赏:70 手机版
解决时间 2021-04-02 20:59
- 提问者网友：不爱我么
- 2021-04-02 11:28
5.5乘9.9加9.9怎样简便计算？
最佳答案
- 五星知识达人网友：枭雄戏美人
- 2021-04-02 12:53
全部回答
- 1楼网友：鸽屿
- 2021-04-02 17:21
5.5*9.9+9.9=（5.5+1）*9.9=6.5*（10-0.1）=65-0.65=64.35
- 2楼网友：几近狂妄
- 2021-04-02 16:02
5.5*9.9+9.9
=5.5*9.9+9.9*1
=（5.5+1）*（10-0.1）
=6.5*10-6.5*0.1
=65-0.65
=64.35
=5.5*9.9+9.9*1
=（5.5+1）*（10-0.1）
=6.5*10-6.5*0.1
=65-0.65
=64.35
- 3楼网友：何以畏孤独
- 2021-04-02 15:31
5.5X9.9+9.9
=（5.5+1）x9.9
=6.5x(10-0.1)
=65-0.65
=64.35
=（5.5+1）x9.9
=6.5x(10-0.1)
=65-0.65
=64.35
- 4楼网友：不如潦草
- 2021-04-02 14:22
5.5X9.9+9.9
=9.9X(5.5+1)
=(10-0.1)X6.5
=65-0.65
=64.35
=9.9X(5.5+1)
=(10-0.1)X6.5
=65-0.65
=64.35
- 5楼网友：玩世
- 2021-04-02 13:46
5.5×9.9+9.9
=(5.5+1)×9.9
=6.5×9.9
=6.5×(10-0.1)
=65-0.65
=64.35
=(5.5+1)×9.9
=6.5×9.9
=6.5×(10-0.1)
=65-0.65
=64.35
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