## Thinking Mathematically (6th Edition)

$1\bigoplus 4=0 \\3\bigoplus 3=1 \\4 \bigoplus 2=1$
When we use 5-hour clock addition, we add like we are calculating the time. For example, if I said that I was arriving 3 hours after 11, I would be arriving at 2. We use the same login here, except with a 5-hour clock. Use 5-hour clock addition to find: $1\bigoplus 4=0 \\3\bigoplus 3=1 \\4 \bigoplus 2=1$