41.6-13.68+8.4-5.32 简便

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41.6-13.68+8.4-5.32 简便
x)313543ж3536Rxɾ6IE l}$ r @ (1550 m ڀ9O?ӏlP/asPP\

41.6-13.68+8.4-5.32 简便
41.6-13.68+8.4-5.32 简便

41.6-13.68+8.4-5.32 简便
41.6-13.68+8.4-5.32
=(41.6+8.4)-(13.68+5.32)
=50-19
=31

原式=(41.6+8.4)-(13.68+5.32)=50-19=31