   # Fill each o with + or - to make the following equation: 1 o 2 o 3 o 4 .... o 63 o 64 = 0

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Fill each o with + or - to make the following equation: 1 o 2 o 3 o 4 .... o 63 o 64 = 0 posted Sep 18, 2018
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+1 - 2 - 3 + 4 = 0
+5 - 6 - 7 + 8 = 0
+9 - 10 - 11 + 12 = 0 ...........
+61 - 62 - 63 + 64 = 0. answer Sep 18, 2018

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