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

| 7 | 8 | |---|---| | 9 | 4 |

Whether you are a parent looking to sharpen your child’s math skills, a teacher seeking a warm-up activity for Monday morning, or just a puzzle lover tired of Sudoku, give Meximath a try. Look at a 3x3 grid. Start pairing. And remember: If your answer is not 552, you missed a pair. 12 + 23 + 45 + 56 + 78 + 89 + 14 + 47 + 25 + 58 + 36 + 69 =