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数学
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145+263+55-198
111!111!
人气：389 ℃ 时间：2019-11-04 14:32:21
解答
145+263+55-198
=145+55+263-198
=200+263-（200-2）
=200+263-200+2
=200-200+263+2
=265
推荐
145+263+55-198用简便方法计算
用简便的算法计算 145+263+55-198=? 487-187-139-61=?
2106-297+599 145+263+55-19．
下面各题,怎样简便就怎样计算 145+263+55-198487-187-139-61300-123-75-77
145+263+35-198步骤
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