title: Finding the sum of matching components in two lists
body: <p>I have two lists:</p>
  
  <pre><code>A = [1, 2, 3, 4, 5]
  B = [6, 7, 8, 9, 10]
  </code></pre>
  
  <p>And I need to be able to find the sum of the nth terms from both lists i.e. 1+6, 2+7, 3+8 etc</p>
  
  <p>Could someone please tell me how to refer to items in both lists at the same time?</p>
  
  <p>I read somewhere that I could do Sum = a[i] + b[i] but I'm not convinced on how that would work.</p>