Question
Complete the number pattern. Fill in the missing number.
(a)           , 7506, 7511, (b)             , 7521, 7526
1 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Complete the number pattern. Fill in the missing number.
(a)           , 7506, 7511, (b)             , 7521, 7526