Math Problem Solver

$$5555 + 5=5560$$

$$\begin{aligned} \mathtt{5}\mathtt{5}\overset{\mathtt{1}}{\mathtt{5}}\mathtt{5}\\ \mathtt{+\phantom{0}}\phantom{0}\phantom{0}\phantom{0}\mathtt{5}\\ \hline \mathtt{5}\mathtt{5}\mathtt{6}\mathtt{0} \end{aligned}$$

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

$6$ is the digit in the $10^{1}$ place. $1 \times 10^{1} + 5 \times 10^{1} + 0 \times 10^{1} = 6 \times 10^{1}$.

$5$ is the digit in the $10^{2}$ place. $5 \times 10^{2} + 0 \times 10^{2} = 5 \times 10^{2}$.

$5$ is the digit in the $10^{3}$ place. $5 \times 10^{3} + 0 \times 10^{3} = 5 \times 10^{3}$.