6.8*4.2+5.8+5.8*5.8怎么巧算
答案:1 悬赏:80 手机版
解决时间 2021-03-11 21:45
- 提问者网友：感性作祟
- 2021-03-11 08:54
6.8*4.2+5.8+5.8*5.8怎么巧算
最佳答案
- 五星知识达人网友：迟山
- 2021-03-11 09:00
6.8*4.2+5.8+5.8*5.8
=6.8x4.2+5.8x(1+5.8)
=6.8x4.2+5.8x6.8
=6.8x(4.2+5.8)
=6.8x11
=6.8x(10+1)
=6.8x10+6.8x1
=68x6.8
=74.8
=6.8x4.2+5.8x(1+5.8)
=6.8x4.2+5.8x6.8
=6.8x(4.2+5.8)
=6.8x11
=6.8x(10+1)
=6.8x10+6.8x1
=68x6.8
=74.8
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