JSFiddle - React, Tailwind, and code Playground

HTML

<form oninput="result.value=parseInt(a.valueAsNumber)+parseInt(b.valueAsNumber)">
  <input type="range" id="a" name="a" value="10" /> +
  <input type="number" id="b" name="b" value="50" /> =
  <output name="result" for="a b">60</output>
</form>