Math Problem Solver

$$132 - 131=1$$

$$\begin{aligned} \mathtt{1}\mathtt{3}\mathtt{2}\\ \mathtt{-\phantom{0}}\mathtt{1}\mathtt{3}\mathtt{1}\\ \hline \mathtt{0}\mathtt{0}\mathtt{1} \end{aligned}$$

$1$ is the digit in the $10^{0}$ place. $2 \times 10^{0} - 1 \times 10^{0} = 1 \times 10^{0}$.

$0$ is the digit in the $10^{1}$ place. $3 \times 10^{1} - 3 \times 10^{1} = 0 \times 10^{1}$.

$0$ is the digit in the $10^{2}$ place. $1 \times 10^{2} - 1 \times 10^{2} = 0 \times 10^{2}$.