Question
Find the missing digits.
  1. N
  2. P
 
      3 6 7 N
-        5 P 7
       3 1 5 1
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. N
  2. P
 
      3 6 7 N
-        5 P 7
       3 1 5 1