12.3减2.5乘0.12用简便方法计算,
答案:3 悬赏:50 手机版
解决时间 2021-01-29 14:28
- 提问者网友:容嬷嬷拿针来
- 2021-01-29 04:47
12.3减2.5乘0.12用简便方法计算,
最佳答案
- 五星知识达人网友:往事隔山水
- 2021-01-29 05:15
12.3减2.5乘0.12
=12.3-2.5x0.4x0.3
=12.3-1x0.3
=12.3-0.3
=12
=12.3-2.5x0.4x0.3
=12.3-1x0.3
=12.3-0.3
=12
全部回答
- 1楼网友:孤独的牧羊人
- 2021-01-29 07:12
12.3-2.5*0.12=12.3-2.5*0.3*0.4=12.3-1*0.3=12
- 2楼网友:你哪知我潦倒为你
- 2021-01-29 06:10
12.3-2.5×0.12
=12.3-2.5×(0.4×0.3)
=12.3-(2.5×0.4)×0.3
=12.3-1×0.3
=12.3-0.3
=12
=12.3-2.5×(0.4×0.3)
=12.3-(2.5×0.4)×0.3
=12.3-1×0.3
=12.3-0.3
=12
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