6.2+3.2*25的简便计算
答案:2 悬赏:70 手机版
解决时间 2021-01-21 06:34
- 提问者网友:雪舞兮
- 2021-01-20 10:58
6.2+3.2*25的简便计算
最佳答案
- 五星知识达人网友:慢性怪人
- 2021-01-20 11:08
6.2+3.2×2.5
=6.2+(0.8×4)×(5×0.5)
=6.2+5×4×0.5×0.4
=6.2+20×0.2
=6.2+4
=10.2
=6.2+(0.8×4)×(5×0.5)
=6.2+5×4×0.5×0.4
=6.2+20×0.2
=6.2+4
=10.2
全部回答
- 1楼网友:一秋
- 2021-01-20 12:32
解:
6.2+3.2×25
=6.2+(3+0.2)×25
=6.2+3×25+0.2×25
=6.2+75+5
=6.2+80
=86.2
6.2+3.2×25
=6.2+(3+0.2)×25
=6.2+3×25+0.2×25
=6.2+75+5
=6.2+80
=86.2
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