# 2 Summations

Logic Level 3

$\begin{array} { c c c c c } & & \square \\ & & + \\ \square & + & {\color{red} \square} & = & \square \\ && = \\ && \square \\ \end{array}$

Use distinct digits 1 to 5 to make the above equations true. How many possibilities are there for the center square (marked in red)?

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