Question
What are the missing numbers?
2978, (a)          , 2998, 3008, (b)          , 3028
2 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?
2978, (a)          , 2998, 3008, (b)          , 3028