which digit should replace the question mark? 2584 3647 ?231 The vowels have been removed from this saying. The consonants are in the right order but have been set in blocks of four. Can you work out the saying? MNYS LPTW XTCP N DLP Each symbol represents a different digit from 1 to 9. The sum of the digits in each row and column is shown. Can you work out which digit each symbol stands for? When you have replaced each symbol in the square, find the sum of the numbers along the diagonal line that starts in the top left-hand corner.