Question
Find the missing digits.
  1. P
  2. Q

      3 P 3 6
+    3 1 Q 1
      1 6 9 4
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. P
  2. Q

      3 P 3 6
+    3 1 Q 1
      1 6 9 4