Question
Complete the number pattern. Fill in the missing number.
8161, 8170, (a)           , 8188, 8197, (b)           
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.
8161, 8170, (a)           , 8188, 8197, (b)