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

Find the Sum of the two Numbers.



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