Question
What are the missing numbers?
3430, (a) _____ , 3490, 3520, (b) _____ , 3580
1 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

What are the missing numbers?
3430, (a) _____ , 3490, 3520, (b) _____ , 3580