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When both are the same, I jump low.

When both are different, I jump high.

You can use me to add, but I don't know maths.

What am I?

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The answer is

Binary XOR Operator(Symbol :- ^)

Solution:

If we call the inputs A and B and the output C we can show the XOR function as:

    A         B       C
    0  XOR    0   ->  0
    0  XOR    1   ->  1
    1  XOR    0   ->  1
    1  XOR    1   ->  0

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  • $\begingroup$ you should hide also the operation block $\endgroup$ – Mario Garcia Aug 3 '16 at 11:57
  • $\begingroup$ Does this satisfy the third line? $\endgroup$ – Chris Aug 3 '16 at 15:00
2
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Weighing scales (not the digital ones)

Explanation:

When both sides have the same weight, the scale's bar remains low. When the 2 sides have different weight, it tilts and one side jumps high.

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