67 of 100: Tram O'Rama

Logic Level 1

$\begin{array} {ccccc} \large & & \color{red}M & \color{green}A & \color{blue}R & \color{purple}T\\ \large + & &\color{purple}T & \color{blue}R& \color{green}A & \color{red}M \\ \hline \large & & \color{blue}R & \color{green}A & \color{red}M & \color{green}A \end{array}$

If each letter represents a different nonzero digit, what is $\color{red}M\color{black}?$