We have been learning about linear sequences this week. We have been spotting patterns in numbers and trying to describe a rule to find the next numbers in the sequence. We have also been learning to describe the sequence using algebra.

See if you can challenge yourself to spot the rule that describes the sequence below. Can you identify an expression (using algebra) to find the nth term in the sequence? If you can solve the challenge, why not send in a comment to share your ideas and win some team points?

The numbers in the sequence are

-2 4 10 16

Can you describe the rule for the sequence in words?

What is the next number in the sequence?

What is the 100th term in the sequence?

(n = 100)

What is the nth term in the sequence?

Jim thinks that the number 60 will appear in the sequence? Is he correct? How do you know?

If 60 is not in the sequence, what is the nearest number

to 60 that is in the sequence?

Molly thinks that there will never be an odd number in this sequence. Is she correct? How do you know?