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Adding Numbers Arranged Vertically

How to add two two-digit numbers (for example 29 + 33).

  • If the numbers are arranged vertically, they are in a format ready to be added.
  • 
    29
    33
    
    
  • Add the ones' place digits (9 + 3 = 12). This sum is a two-digit number, so place a one above the tens' place column and place the two below the line in the ones' place column.
  • 
    1
    29
    33
     2
    
  • Add the tens' place digits (1 + 2 + 3 = 6) and place the answer below the line in the tens' place column.
  • 
    29
    33
    62





Practice

Find the Sum of the two Numbers.



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You have correct and   incorrect.  This is percent correct.

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