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Finding Gaps in Sequences

Maths: Year 5 & 6 National Curriculum, topic 7.1.2

Finding Gaps in Sequences

You will sometimes be given an incomplete sequence. You need to know how to complete a sequence.

Example

Example

  • Look at the sequence above.
  • One number is missing from the sequence.
Step 1

Step 1

  • The first step is to work out how much the sequence changes between the terms you are given.
  • The sequence seems to go up in 5s.
Try a number to see if it works

Try a number to see if it works

  • It looks like the sequence goes up in 5s.
  • Try adding 5 to find the missing term.
  • Then add 5 to the missing term to see if it works in the sequence.
  • 12 + 5 = 17 ✅
  • The sequence works so the missing number is 12.

Test yourself on Finding Gaps in Sequences

  • What number goes in the gap in the sequence?

  • What number goes in the gap in the sequence?

  • What number goes in the gap in the sequence?

  • What number goes in the gap in the sequence?

  • What number goes in the gap in the sequence?

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