Math Problem Solver

$$15 + 2829=2844$$

$$\begin{aligned} \phantom{0}\phantom{0}\overset{\mathtt{1}}{\mathtt{1}}\mathtt{5}\\ \mathtt{+\phantom{0}}\mathtt{2}\mathtt{8}\mathtt{2}\mathtt{9}\\ \hline \mathtt{2}\mathtt{8}\mathtt{4}\mathtt{4} \end{aligned}$$

$4$ is the digit in the $10^{0}$ place. $5 \times 10^{0} + 9 \times 10^{0} = 14 \times 10^{0} = 1 \times 10^{1} + 4 \times 10^{0}$.$1 \times 10^{1}$ carries to the $10^{1}$ place.

$4$ is the digit in the $10^{1}$ place. $1 \times 10^{1} + 1 \times 10^{1} + 2 \times 10^{1} = 4 \times 10^{1}$.

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

$2$ is the digit in the $10^{3}$ place. $0 \times 10^{3} + 2 \times 10^{3} = 2 \times 10^{3}$.