Adding Numbers Arranged Vertically
How to add two twodigit 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 twodigit 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

