Logic Masters · Ages 11 to 12

nth Term Grid

Find the nth term rule of an arithmetic sequence from its table. A Grade 7–8 sequences worksheet with answer keys.

Grid WorksheetGrades nth-term, sequences, algebra5 difficulty levels6 questions

The learning journey

Every activity is one step. Here is where this one fits.

  1. PlayLearn the idea in a game
  2. Practise(you are here)Lock it in on paper
  3. ReviewCome back and keep it sharp
  4. MasterTake on a harder challenge
  5. AchieveEarn a certificate

About nth Term Grid

nth Term Grid takes Grade 7 and 8 learners a step beyond continuing a sequence to finding its general rule: an expression for the nth term that gives any term directly. Each worksheet shows a position-and-term table for an arithmetic sequence, and the student finds the nth term rule and uses it to give the next term. Finding the nth term of a linear sequence is a core lower-secondary algebra expectation across the US, UK, Canada and Australia, and it is a genuine moment of mathematical power, turning a list of numbers into a formula that captures the whole pattern. The key insight, that the coefficient of n is the common difference and the constant is found by working back to a notional zeroth term, is exactly what these questions develop. Presenting the sequence as a clear table helps students line up positions with terms and spot the structure. The five levels vary the starting term and common difference so the worksheet stays fresh and reusable. Each page prints cleanly on a standard A4 sheet, and every level downloads with its own answer key giving the nth term rule and the next term. There is no advertising and no sign-up. Use it to master nth-term rules or alongside our pattern games.

Common questions

What is the nth term rule?
A formula that gives any term of a sequence from its position n.
What grade is this for?
Grade 7 to Grade 8 learners aged 11 to 13.
Is an answer key included?
Yes, every level gives the nth term rule and the next term.

A hand for grown-ups

Before you start
Find a calm few minutes with no rush. Let your child know it is fine to find some of it tricky — that is what practice is for.
While they work
Sit nearby but let them lead. If they get stuck, ask "what could you try?" rather than giving the answer — the thinking is the point.
Afterwards
Ask them to show you one they found easy and one they found hard. Praise the effort on the hard one, not just the right answers.
Watch out for
Rushing. If answers come too fast and wrong, slow the pace down together rather than pushing for more.
Away from the screen
Look for the same maths in everyday life — counting stairs, sharing snacks, spotting shapes on a walk.

Chosen by the skills this activity practises.