2 + 2 = 5 - Wikipedia
...2 + 2 = 5 or two plus two equals five is a mathematical falsehood which is used as an example of a simple logical error that is obvious to anyone familiar with basic arithmetic....
https://en.wikipedia.org/wiki/2_%2B_2_%3D_5
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Basic Calculator
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Equation Solver - Mathway
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Addition Calculator - Math.net
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Mathway | Basic Math Problem Solver
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Step-by-Step Calculator - Symbolab
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