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Make it true (Posted on 2016-05-09) Difficulty: 3 of 5
2 ? 3 ? 4 ? 5 ? 6 = 10

To make the above equation valid replace each of the four ? marks by any operator of the set (+, -, /, *) and unlimited quantity of brackets.

Rem1: No other operators/signs allowed.
Rem2: Analytical solution preferred.

See The Solution Submitted by Ady TZIDON    
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Solution Quick solution | Comment 1 of 5
Since 4 + 6 = 10, we just need to eliminate the 2, 3 and 5, which we can do by merely using all +'s except for a - before the 5:

2 + 3 + 4 - 5 + 6 = 10

  Posted by Charlie on 2016-05-09 13:44:23
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