Question
Complete the number pattern. Fill in the missing number.
5127, (a)          , 5145, 5154, (b)           , 5172
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.
5127, (a)          , 5145, 5154, (b)           , 5172