It's Sudoku for beginners! Well, not exactly, but these math squares offer a fun way to practice addition for your students. Each of the sixteen 3x3 squares has four numbers filled in. Scholars add the numbers across and down, then use those sums to find the final number in the corner. For each of these two worksheets, one example is done. There are both single and double-digit numbers used here, and one sum is over 100.