Worksheets Crafter: Digit subtraction is a basic mathematical operation that involves subtracting one number from another. When performing digit subtraction, the smaller number is subtracted from the larger number to find the difference between them. In order to successfully complete a digit subtraction problem, it is important to make sure that the numbers being subtracted are properly aligned, with the ones digit under the ones digit, the tens digit under the tens digit, and so on. Borrowing may be necessary when the digit being subtracted is larger than the digit it is being subtracted from, in which case, the number being subtracted from is decreased by one and the tens place is increased by ten. Practice and familiarity with basic subtraction facts can help improve speed and accuracy when performing digit subtraction.