1.25*0.7 1.25*1.2 12.5的简便
答案:1 悬赏:50
解决时间 2021-01-10 19:27
- 提问者网友：泪痣哥哥
- 2021-01-09 20:29
1.25*0.7 1.25*1.2 12.5的简便
最佳答案
- 二级知识专家网友：摆渡翁
- 2021-01-09 22:06
1.25*0.7 +1.25*1.2 +12.5的简便
=1.25x(0.7+1.2)+12.5
=1.25x1.9+12.5
=1.25x2-1.25x0.1+12.5
=2.5+12.5-0.125
=15-0.125
=14.875
=1.25x(0.7+1.2)+12.5
=1.25x1.9+12.5
=1.25x2-1.25x0.1+12.5
=2.5+12.5-0.125
=15-0.125
=14.875
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