<note xmlns="http://www.tei-c.org/ns/1.0" place="right" hand="#author" type="auxCalc">920 <supplied cert="high">+</supplied> 1100 <supplied cert="high">+</supplied> 1050 <supplied cert="high">=</supplied> 3070 <supplied cert="high">÷ 3</supplied> <supplied cert="high">=</supplied> 1023</note>