Christina and I were trying to decipher a journal article. They tested 960 cases. We tried to figure out where they came from. We saw they had 15 products and 64 media.
"Is 15 times 64 960?" I said. I calculated it in my head. Fifteen times sixty is 900. Five times four is twenty. I was thinking 920 just as Christina said "920". Armed with this confirmation, we blythly went down the wrong path until at last I checked it again. And, of course, 15 times 64 is indeed 960.
How had we BOTH gotten the SAME wrong answer? Maybe we were taking math lessons from Ma and Pa Kettle, seen in this video explaining how 5 * 14 is 25.
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