"X-Mas Math" Game

XMAS Math is a simple but fun to play puzzle math game. The word XMAS is used to represent the numbers in the boxes. The X represents the thousands, M to the hundreds, A to the tens and S to the ones positions in the numbers. Use this to solve all of the puzzles. For example in the number 3489, X is 3, M is 4, A is 8 AND S is 9.