Question
What are the missing numbers?
1130, 3140, (a) _____, 3180, (b) _____, 3220
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?
1130, 3140, (a) _____, 3180, (b) _____, 3220