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Ruby, 58 bytes Simple eval solution. Using ** for exponentiation. ->a,b,c{%w[+ - * / % **].select{eval("#{a}#{_1}#{b}")==c}} Attempt This Online!
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#1: Initial revision
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snail_
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2021-12-20T08:21:59Z (almost 3 years ago)
# Ruby, 58 bytes
Simple eval solution. Using `**` for exponentiation.
<pre><code class="lang-ruby">->a,b,c{%w[+ - * / % **].select{eval("#{a}#{_1}#{b}")==c}}</code></pre>
[Attempt This Online!](https://ato.pxeger.com/run?1=m72kqDSpcsGiNNulpSVpuhY3rXTtEnWSdJKrVcujtRV0FbQU9BVUFbS0YvWKU3NSk0uqU8sSczSUlKsTa5Wr4w2BRFKtkqatbXJtLcSEVQUKadFGOkY6JrEQgQULIDQA)