Question
What are the missing digits?
  1. S
  2. T
   5 T 7 6
+    7 S 3
   6 6 2 9

2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

What are the missing digits?
  1. S
  2. T
   5 T 7 6
+    7 S 3
   6 6 2 9