I can imagine that. Me and my mom are of the calculating kind so when I visit over holidays it&#x27;s not uncommon we sling a bunch of numbers back and forth over the dinner table to figure something out, and after we&#x27;re done my dad and sister ask how we arrived at the third number from the first two.<p>But in more &quot;normal&quot; social contexts, what tends to happen is one of the people involved sit with a digital calculator and input the things other people ask for. It&#x27;s a bit slower, but the results are just as good.