mathsgap
Find my gaps

GCSE maths, Foundation and Higher. Edexcel, AQA and OCR.

Losing marks in GCSE maths? Find the exact step. Then fix it.

A mock tells you what went wrong. MathsGap finds out why: the one small skill underneath that never quite stuck. Then it fixes it, and checks it stays fixed.

Find my gaps

Free check. About 10 minutes. Built by maths teachers.

Example

  1. Your mock

    Question 7, fractions. 0 out of 2.

  2. What you wrote

    23÷45=\dfrac{2}{3} \div \dfrac{4}{5} =23×45\dfrac{2}{3} \times \dfrac{4}{5}This step=815= \dfrac{8}{15}

  3. What MathsGap found

    You changed ÷ to × but didn’t flip the second fraction. Dividing by 45\dfrac{4}{5} is the same as multiplying by 54\dfrac{5}{4}.

    23÷45=\dfrac{2}{3} \div \dfrac{4}{5} =23×54\dfrac{2}{3} \times \dfrac{5}{4}=1012=56= \dfrac{10}{12} = \dfrac{5}{6}

  4. Gap found: dividing by a fraction.

    Next: a 3 minute lesson on this step.

You’ve revised. The marks haven’t moved.

Another past paper. Another video. Another evening on a topic you’ve already done. Then the mock comes back with the same grade.

It isn’t effort. Revision aims at topics. Marks are lost on steps.

You lose marks on Pythagoras, so you revise Pythagoras. But Pythagoras was fine. The marks went on squaring a decimal.

MathsGap looks at the step, not the topic.

Every wrong answer points to the skill behind it. Three questions from three topics can turn out to be one gap. Fix it once, and the marks come back everywhere it shows up.

Example

Your mock results

  • Q7Fractions0 of 2
  • Q12Pythagoras1 of 3
  • Q18Area2 of 4

What MathsGap found

All three: multiplying decimals.

One gap. 6 marks.

How it works

  1. Find the step.

    For every question, maths teachers have worked out the answers students most often give and what each one means. Longer questions have a box for each step, like method marks in the exam.

    So we don’t just see that an answer was wrong. We see where it broke. And we check before we call it a gap: one wrong answer could be a slip, so a second question confirms it.

  2. Fix it in minutes.

    Each gap gets a short lesson built around the step you missed. See why it works, watch it done, try it with help, then three on your own. New numbers every time, so you learn the method, not the answer.

    Questions get harder as you improve and ease off when you struggle, so you get about 3 in 4 right. Never boring, never crushing.

  3. Know it’s fixed.

    A gap doesn’t count as fixed because you got one question right. It’s fixed when you get it right again 3 days later, and again 2 weeks later.

    Parents see the gaps found, the ones being fixed, and the ones that are fixed. Nothing else.

    • Gap found
    • Fixing
    • Fixed

Built for the two of you

For the student

You’re not bad at maths. There’s a gap somewhere, and gaps can be closed.

Keep practising what you know, and put your first effort into the gaps that cost you marks.

For the parent

No more “How’s revision going?” “Fine.”

See exactly what they’re working on and what’s fixed, with a short email every Sunday.

A tutor costs about £30 an hour and starts by guessing where the gaps are. MathsGap costs £5 a month and starts by finding them.

Got a tutor already? Share the gaps list, so every session goes straight to what matters.

Wellbeing

Calm by design

  • No leaderboards.

    You only compete with yourself. Your results are compared with your own past results, never with anyone else.

  • No streak guilt. No paid boosts.

    No points taken away, no spins, nothing to buy. Just the next gap to fix.

  • Rest breaks built in.

    A break reminder after 25 minutes. Never in the middle of a timed paper.

Built by maths teachers.

Every question, wrong answer and lesson is written by people who’ve marked thousands of GCSE papers.

Questions parents ask

Why is my child losing marks in maths when they revise so much?

Usually because revision aims at topics and marks are lost on steps. One missing skill can cost marks across several topics. MathsGap finds that skill.

Is this another maths revision site?

No. Revision sites give you more questions and videos. MathsGap finds the exact skill behind your lost marks, fixes it, and checks it stays fixed.

They already do maths homework online at school.

That covers the class. This covers your child.

How do I get my child from a grade 4 to a 5 in GCSE maths?

Close the grade 4 gaps first. Every skill in MathsGap sits at the grade where it’s usually secured, so you always know what stands between you and the next grade.

Which exam boards?

Edexcel, AQA and OCR GCSE Maths, Foundation and Higher.

Will they actually use it?

One question at a time, a few minutes a day, pitched so they get about 3 in 4 right. It works on a phone.

How is it marked?

Automatically, against rules written by maths teachers. The same answer always gets the same mark, and every question has a full worked solution.

What does it cost?

The check is free. After that, £5 a month or £50 a year per child. Cancel anytime. Schools can run a free half term pilot.

Find your first gap tonight.

GCSE Maths Paper 1 is on Friday 14 May 2027. 188 days to go. One gap a week is 26 gaps closed before the exam.

Find my gaps

Free check. About 10 minutes.