Question
Find the missing digits. 
1 E F + G F 4 = 4 F 9
(a) E
(b) F
(c) G
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 E F + G F 4 = 4 F 9
(a) E
(b) F
(c) G