Question
Complete the number pattern. Fill in the missing number.
(a)           , 2857, 2863, (b)             , 2875, 2881
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)           , 2857, 2863, (b)             , 2875, 2881