Question
Find the missing digits.
  1. R
  2. S

      5 R 1 5
+    1 3 S 3
      3 6 3 6
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Find the missing digits.
  1. R
  2. S

      5 R 1 5
+    1 3 S 3
      3 6 3 6