SCREEN [2]

Number 1 = 868
Number 2 = 73


  100      10      

---

    800     60     8
+  0      70     3
--------------------------------------------------------------------------
 <-{0}+     <-{100}+     <-{10}+
    900     40     1



Result = 0 + 900 + 40 + 1;
Result = 941

SCREEN [3]

Number 1 = 868
Number 2 = 73


  100     10     

---

    800    60    8
+  00      70    3
--------------------------------------------------------------------------
 <-{0000}+       <-{100}+       <-{10}+
   900    40    1



Result = 941

SCREEN [4]

Number 1 = 868
Number 2 = 73


     1   1   

---

    8   6   8
+       7   3
--------------------------------------------------------------------------
   0 9   4   1



Result = 941