Math Problem Solver

$$100000 - 81938=18062$$

$$\begin{aligned} \overset{\mathtt{{\scriptscriptstyle 0}}}{\cancel{\mathtt{1}}}\overset{\mathtt{{\scriptscriptstyle 9}}}{\cancel{\mathtt{0}}}\overset{\mathtt{{\scriptscriptstyle 9}}}{\cancel{\mathtt{0}}}\overset{\mathtt{{\scriptscriptstyle 9}}}{\cancel{\mathtt{0}}}\overset{\mathtt{{\scriptscriptstyle 9}}}{\cancel{\mathtt{0}}}\overset{\mathtt{{\scriptscriptstyle 10}}}{\cancel{\mathtt{0}}}\\ \mathtt{-\phantom{0}}\phantom{0}\mathtt{8}\mathtt{1}\mathtt{9}\mathtt{3}\mathtt{8}\\ \hline \mathtt{0}\mathtt{1}\mathtt{8}\mathtt{0}\mathtt{6}\mathtt{2} \end{aligned}$$

Borrow $10^{5}$, resulting in $0$ in the $10^{5}$ place, and $10$ in the $10^{4}$ place.

Borrow $10^{4}$, resulting in $9$ in the $10^{4}$ place, and $10$ in the $10^{3}$ place.

Borrow $10^{3}$, resulting in $9$ in the $10^{3}$ place, and $10$ in the $10^{2}$ place.

Borrow $10^{2}$, resulting in $9$ in the $10^{2}$ place, and $10$ in the $10^{1}$ place.

Borrow $10^{1}$, resulting in $9$ in the $10^{1}$ place, and $10$ in the $10^{0}$ place.

$2$ is the digit in the $10^{0}$ place. $10 \times 10^{0} - 8 \times 10^{0} = 2 \times 10^{0}$.

$6$ is the digit in the $10^{1}$ place. $9 \times 10^{1} - 3 \times 10^{1} = 6 \times 10^{1}$.

$0$ is the digit in the $10^{2}$ place. $9 \times 10^{2} - 9 \times 10^{2} = 0 \times 10^{2}$.

$8$ is the digit in the $10^{3}$ place. $9 \times 10^{3} - 1 \times 10^{3} = 8 \times 10^{3}$.

$1$ is the digit in the $10^{4}$ place. $9 \times 10^{4} - 8 \times 10^{4} = 1 \times 10^{4}$.

$0$ is the digit in the $10^{5}$ place. $0 \times 10^{5} - 0 \times 10^{5} = 0 \times 10^{5}$.