7.8*5.6 2.3*94.4的简便方法
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解决时间 2021-04-17 23:37
- 提问者网友：姑娘长的好罪过
- 2021-04-17 07:46
7.8*5.6 2.3*94.4的简便方法
最佳答案
- 五星知识达人网友：持酒劝斜阳
- 2021-04-17 09:24
7.8*5.6 +2.3*94.4
=5.5*5.6+2.3*5.6 +2.3*94.4
=5.5*5.6+2.3*100
=230+11*5.6/2
=230+（56+5.6）/2
=230+30.8
=260.8
=5.5*5.6+2.3*5.6 +2.3*94.4
=5.5*5.6+2.3*100
=230+11*5.6/2
=230+（56+5.6）/2
=230+30.8
=260.8
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