Meximath -

12 + 23 + 45 + 56 + 78 + 89 + 14 + 47 + 25 + 58 + 36 + 69 = ?

Meximath is unique because a 5-year-old can attempt it (by pairing numbers visually), but a mathematician can explore its combinatorial properties (how many pairs in an n x n grid? The formula is 2n(n-1) ). As of 2025, Meximath shows no signs of slowing down. App developers have created "Meximath Generators" that produce infinite puzzles. Coding challenge platforms like LeetCode and HackerRank have seen user-submitted "Meximath Solver" problems where you must write a Python or JavaScript function to compute the sum. meximath

You cannot argue with the answer to Meximath—552 for the classic grid. It is deterministic. That objectivity, combined with the satisfying click of "getting it," ensures that Meximath will continue to be used by teachers, shared by friends, and debated by comment sections for years to come. 12 + 23 + 45 + 56 + 78 + 89 + 14 + 47 + 25 + 58 + 36 + 69 =