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hi

5+2-(-)13=???

 Aug 16, 2016
 #1
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0

5+2-[-]13

5+2+13

19

 Aug 16, 2016
 #2
avatar+9665 
0

5+2-(-13)

= 7 + 13

= 20

Guest#1 made a little mistake.

 Aug 17, 2016

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