In this activity, we will learn how to fill in the missing numbers in given sequences.
e.g. Fill in the missing numbers in this sequence:
Look for clues from neighbouring terms to work out the rule.
Here 51 - 39 and 39 - 27 both equal 12.
This means that the rule for the sequence is that each term goes down by 12.
B will be 51 + 12 = 63.
A will be 63 + 12 = 75.
So the final sequence is: