## Thinking Mathematically (6th Edition)

$4_{five}$
Start with right-most column. 3 is less than 4. Borrow 1 five from the 2 in the next column. In base ten: (3+5)-4=4 Record: $4_{five}$ .$\ \ \ 23_{five}$ $-\ 14_{five}$ $\_\_\_ \_$ $\quad \ \ 4_{five}$ Next column: $(2-1)=1$ (we borrowed one five) $1-1=0$ No need to record the zero. Result: $4_{five}$