I was about to go on when SA said, "I was wondering about the 20,000 men in three groups."
"That's a good question," said I. "How many men would be in each group?"
"Okay," I thought, "I'll help him get started."
"Well, I think it would be more than 6,000," I began, "Because three groups of 6,000 would make 18,000."
"Six thousand, six hundred sixty-six dot six seven," SA answered.
Startled laughter. I mean, I know he's good at math, but I wasn't quite expecting that.
"Well," I said, "I don't think you would want to divide a man into parts for this purpose, so you'd probably want to have one extra person in two of the groups instead of the 'dot six seven'."
We went on with the reading and narration, finishing the lesson fifteen minutes later.
Then I noticed that he had my cell phone. Which has a calculator.
That explains the "dot six seven." I didn't think he was that familiar with decimals yet.