7.5×46.7+39.9×2.5等于多少(简便运算)
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解决时间 2021-02-05 06:15
- 提问者网友:王者佥
- 2021-02-04 21:27
7.5×46.7+39.9×2.5等于多少(简便运算)
最佳答案
- 五星知识达人网友:轻雾山林
- 2021-02-04 21:56
解: 7.5*46.7+39.9*2.5
=7.5*46.7+(46.7-6.8)*2.5
=46.7*(7.5+2.5)-6.8*(5/2)
=467-17
=450
=7.5*46.7+(46.7-6.8)*2.5
=46.7*(7.5+2.5)-6.8*(5/2)
=467-17
=450
全部回答
- 1楼网友:时间的尘埃
- 2021-02-05 00:41
7.5×46.7+39.9×2.5=2.5×[(50-3.3)×3+39.9]=2.5×(150-9.9+39.9)=2.5×180=2.5×4×45=450
- 2楼网友:洎扰庸人
- 2021-02-05 00:18
>> 7.5*46.7+39.9*2.5
ans =
450
结果是450
希望我的回答会对你有帮助!
ans =
450
结果是450
希望我的回答会对你有帮助!
- 3楼网友:掌灯师
- 2021-02-04 22:49
解:原式=2.5×3×46.7+39.9×2.5
=2.5×140.1+39.9×2.5
=2.5×(140.1+39.9)
=2.5×180
=450
=2.5×140.1+39.9×2.5
=2.5×(140.1+39.9)
=2.5×180
=450
- 4楼网友:往事埋风中
- 2021-02-04 22:37
7.5×46.7+39.9×2.5
=2.5×3×46.7+2.5×39.9
=2.5×(140.1+39.9)
=2.5×180
=450
=2.5×3×46.7+2.5×39.9
=2.5×(140.1+39.9)
=2.5×180
=450
- 5楼网友:雾月
- 2021-02-04 22:11
7.5*46.7+39.9*2.5
=7.5*46.7+7.5*(39.9/3)
=7.5*(46.7+13.3)
=7.5*60
= 450
=7.5*46.7+7.5*(39.9/3)
=7.5*(46.7+13.3)
=7.5*60
= 450
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