Teachers, save “Binary conversion gone wrong!” to assign it to your class.

Engelbert has been learning about binary numbers at school. He had a go at converting binary numbers to ordinary decimal numbers but he got confused and has done everything incorrectly. Explain to Englebert where he has gone wrong, the mistake he made, and how to do it correctly. Once you have explained how to do it go ahead and work out the correct conversions and write them down.