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GAME INSTRUCTIONS
Online math crossword puzzle game with difficult sums or long sums, which consists of completing an online math crossword puzzle with 2-, 3-, and 4-digit sums. Perform the long sums (2-, 3-, and 4-digit sums) and complete the crossword puzzle, noting the sum that corresponds to each empty space in the crossword puzzle. Move the mouse around the screen and look at the sum suggested at the bottom to complete the math crossword puzzle with long sums. When you're done, you can check if you've done it correctly and move on to another long sum challenge using the next arrow.