18.5×12-61.2÷1.5、10÷【0.05÷(1-0.5)】、3.92×9.9+0.392
答案:1 悬赏:10 手机版
解决时间 2021-04-01 01:13
- 提问者网友:雾里闻花香
- 2021-03-31 19:58
18.5×12-61.2÷1.5、10÷【0.05÷(1-0.5)】、3.92×9.9+0.392
最佳答案
- 五星知识达人网友:老鼠爱大米
- 2021-03-31 20:36
18.5×12-61.2÷1.5
=222-40.8
=179.2
10÷【0.05÷(1-0.5)】
=10÷(0.05÷0.5)
=10÷0.1
=100
3.92×9.9+0.392×1
=3.92×9.9+3.92×0.1
=3.92×(9.9+0.1)
=3.92×10
=39.2
=222-40.8
=179.2
10÷【0.05÷(1-0.5)】
=10÷(0.05÷0.5)
=10÷0.1
=100
3.92×9.9+0.392×1
=3.92×9.9+3.92×0.1
=3.92×(9.9+0.1)
=3.92×10
=39.2
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