Intermediate
2016


Problem - 2861

Note that $1 + 2 + 3 + 45 + 6 + 78+9=144$. How many different ways are there to make a total of $144$ using only digits of $1$, $2$, $3$, $4$, $\cdots$, $7$, $8$, $9$, in that order, with some addition signs.


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