Question
Find the missing digits.
  1. M
  2. N

      6 M 3 6
+    3 1 N 4
      6 4 7 3
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. M
  2. N

      6 M 3 6
+    3 1 N 4
      6 4 7 3