Math Problem Solver

$$2078 - 1874=204$$

$$\begin{aligned} \overset{\mathtt{{\scriptscriptstyle 1}}}{\cancel{\mathtt{2}}}\overset{\mathtt{{\scriptscriptstyle 10}}}{\cancel{\mathtt{0}}}\mathtt{7}\mathtt{8}\\ \mathtt{-\phantom{0}}\mathtt{1}\mathtt{8}\mathtt{7}\mathtt{4}\\ \hline \mathtt{0}\mathtt{2}\mathtt{0}\mathtt{4} \end{aligned}$$

$4$ is the digit in the $10^{0}$ place. $8 \times 10^{0} - 4 \times 10^{0} = 4 \times 10^{0}$.

$0$ is the digit in the $10^{1}$ place. $7 \times 10^{1} - 7 \times 10^{1} = 0 \times 10^{1}$.

Borrow $10^{3}$, resulting in $1$ in the $10^{3}$ place, and $10$ in the $10^{2}$ place.

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

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