简便计算:36.9-(52.3+36.9)

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简便计算:36.9-(52.3+36.9)
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简便计算:36.9-(52.3+36.9)
简便计算:36.9-(52.3+36.9)

简便计算:36.9-(52.3+36.9)
打开括号
36.9-52.3-36.9移项得36.9-36.9-52.3=-52.3

—52。3

36.9-(52.3+36.9)
=36.9-36.9+52.3
=52.3