Addition and Subtraction Addition Can numbers be negative? Can results be negative? How many addition problems do you want? How large can the numbers be? Subtraction Can numbers be negative? Can results be negative? How many subtraction problems do you want? How large can the numbers be? * The following parameters allow you to change the presentation, but the default values are recommended for printing and readability. Font size: Problems per line: You may also like... Addition Subtraction Mixed Math Problems Multiplication