0.9×99+0.9
答案:6 悬赏:60 手机版
解决时间 2021-04-01 14:10
- 提问者网友:两耳就是菩提
- 2021-03-31 15:23
0.9×99+0.9
最佳答案
- 五星知识达人网友:行路难
- 2021-03-31 16:33
0.9×99+0.9
=0.9×(99+1)
=0.9×100
=90
=0.9×(99+1)
=0.9×100
=90
全部回答
- 1楼网友:玩家
- 2021-03-31 21:52
0.9×99+0.9
=0.9×(99+1) (乘法分配律)
=0.9×100
=90
=0.9×(99+1) (乘法分配律)
=0.9×100
=90
- 2楼网友:过活
- 2021-03-31 20:21
肯定是90!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- 3楼网友:罪歌
- 2021-03-31 19:06
0.9×99+0.9
=0.9×(100-1)+0.9
=0.9×100-0.9×1+0.9
=90-0.9+0.9
90
=0.9×(100-1)+0.9
=0.9×100-0.9×1+0.9
=90-0.9+0.9
90
- 4楼网友:一叶十三刺
- 2021-03-31 17:49
0.9*(100-1)+0.9=90-0.9+0.9=90
- 5楼网友:时间的尘埃
- 2021-03-31 16:46
0.9×99+0.9
=0.9×99+0.9×1
=0.9×(99+1)
=0.9×100
=90
=0.9×99+0.9×1
=0.9×(99+1)
=0.9×100
=90
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