Question
Find the missing digits. 
1 M N + P N 3 = 3 N 6
(a) M
(b) N
(c) P
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

Find the missing digits. 
1 M N + P N 3 = 3 N 6
(a) M
(b) N
(c) P