odds and ends

This morning I went to Biola at 8 am to take a "General Clerical Test." That time in the morning is not a good time to start remembering your multiplication tables, especially when you have between 3.5 and 7 minutes per page to do so. Does anyone remember what 7 x 6 is, or how to, without a calculator, find 13% of $1927.86? >>>>> NOT ME. I'm an adult, and I use a calculator, thank you very much.