Knowing subtraction facts is extremely important. Students who struggle with subtraction facts also struggle with the linked concepts, such as word problems, subtraction with bigger numbers, etc. Single digit subtraction within 10 worksheet is a great way to help learners become fluent with subtraction facts. As the worksheet uses a horizontal format, it allows for more creativity when it comes to how the student solves the problem. In contrast, in the vertical format, students usually employ the standard method to solve.