ADDING THREE DIGIT NUMBERS-3a

Example:   123  Simply the problem:                       / or: 123   3
        +  999      thousands   hundreds    tens    ones  /     999   9
           ---      ---------   --------    ----    ----  /     ---  --
          1122                     1         2       3    /       2  12
                                   9         9       9    /
                                 ----      ----     ---   /      1    1
                                  10        11      12    /     123   2
                                                    ---   /     999   9
   note: 12 ones =1 ten & 2 ones             1       2    /    ----  --
                                           ----           /      22  12
   so we now have                 10        12       2    /
                                           ----           /     1     1
   but 12 tens = 1 hundred + 2 tens                       /     123   1
                                   1         2       2    /     999   9
                                 ___                      /    ----  --
   so the total is                11         2       2         1122  11
END