(0.25_1/5)×7.5=
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解决时间 2021-04-04 06:13
- 提问者网友：泪痣哥哥
- 2021-04-03 12:49
(0.25_1/5)×7.5=
最佳答案
- 五星知识达人网友：三千妖杀
- 2021-04-03 14:07
(0.25-1/5)×7.5
=(0.25-0.2)×7.5
=0.05×7.5
=0.375
=(0.25-0.2)×7.5
=0.05×7.5
=0.375
全部回答
- 1楼网友：旧脸谱
- 2021-04-03 15:12
(0.25-1/5)×7.5
=(0.25-0.2)x7.5
=0.05x7.5
=0.375
=(0.25-0.2)x7.5
=0.05x7.5
=0.375
- 2楼网友：躲不过心动
- 2021-04-03 14:59
如图
- 3楼网友：你哪知我潦倒为你
- 2021-04-03 14:40
解：
①(0.25-1/5)×7.5
=(0.25-0.2)×7.5
=0.05×7.5
=0.375
②(0.25-1/5)×7.5
=0.25×7.5-0.2×7.5
=0.25×（4+3.5）-0.2×（5+2.5）
=0.25×4+0.25×3.5-0.2×5-0.2×2.5
=1+0.25×3.5-1-0.2×2.5
=0.25×3.5-0.2×2.5
=0.25×3.5-2×0.25
=0.25×（3.5-2）
=0.25×1.5
=0.375
①(0.25-1/5)×7.5
=(0.25-0.2)×7.5
=0.05×7.5
=0.375
②(0.25-1/5)×7.5
=0.25×7.5-0.2×7.5
=0.25×（4+3.5）-0.2×（5+2.5）
=0.25×4+0.25×3.5-0.2×5-0.2×2.5
=1+0.25×3.5-1-0.2×2.5
=0.25×3.5-0.2×2.5
=0.25×3.5-2×0.25
=0.25×（3.5-2）
=0.25×1.5
=0.375
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