Customize your addition and subtraction problems in seconds! Meet each student at their level with custom problems. Practice math facts and increase fluency. This sheet creates 30 unique addition and/or subtraction problems. This worksheet will grow with your students. Shift from adding to make 10, subtracting single digit numbers, subtracting 10, adding 100, to adding and subtracting two and three digit numbers. Choose whether to allow negative answers in subtraction. This is the FREE SAMPLE v