NUMBER ADDITION - VERTICAL - Math Fun Worksheets Printable Number Addition Worksheets involves addition of the numbers which are placed vertically. A wide range of problems from 1-digit to 5-digits are available here. Quick links to download / preview the below listed worksheets : Single Digit addition , 1 and 2 digits addition , 2 Digit addition , 2 and 3 digits addition , 3 digit addition ...