Question
Find the missing digits. 
2 Q R + S R 4 = 4 R 8
(a) Q
(b) R
(c) S
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. 
2 Q R + S R 4 = 4 R 8
(a) Q
(b) R
(c) S