Question
Complete the number pattern. Fill in the missing number.
1530, (a)          , 1538, 1542, (b)           , 1550
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.
1530, (a)          , 1538, 1542, (b)           , 1550