Question
812 x 111 + 516 x 111 + 813 x 111
= (a)            x 111
= (b)           
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

812 x 111 + 516 x 111 + 813 x 111
= (a)            x 111
= (b)