Essex maths, mastered.

Everything your child needs to pass the CSSE 11+ Maths paper — in one place.

Start with a free diagnostic assessment, then let adaptive practice, timed mock exams and real standardised-score tracking carry your child to exam day.

Take the free diagnostic See plans & pricing

Preparing families for

KEGS CCHS CRGS CCHSG + 4 more schools

A pupil working through a perimeter worksheet

Free 60-minute diagnostic

Diagnostic report

Sample

78% overall

Fractions86%
Geometry71%
Ratio54%

Next focus: Ratio & proportion Get yours →

Curated CSSE-style questions: 5,000+; Curated CSSE-style questions
Mini games for maths fluency: 17; Mini games for maths fluency
Essex grammar schools covered: 8; Essex grammar schools covered
Free trial on Premium: 7-day; Free trial on Premium

Aligned to every Essex grammar school

KEGS CCHS CRGS CCHSG Southend Boys Southend Girls Westcliff Boys Westcliff Girls

How it works

Diagnose. Practice. Exam-ready.

Diagnose

Start with the free 60-minute partial diagnostic. Get an instant topic-by-topic breakdown of strengths and gaps.

Take the free diagnostic

Practice with purpose

The practice engine rebuilds itself around your child's weakest topics — at least 25% of every session targets the gaps.

Create a free account

Walk in exam-ready

Timed full and half mocks in real exam-paper layout, with standardised scores plotted against the latest CSSE cohort.

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See it in action

A look inside MathsEleven.

The complete toolkit

Six tools. One goal: a grammar school place.

Free

Free Partial Diagnostic

A 60-minute CSSE-style paper with an instant report — no payment, no commitment.

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Premium

Practice Bank & Mock Exams

Over 5,000 curated questions, adaptive weak-area targeting, and timed mocks in authentic exam-paper layout.

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First topic free

Syllabus Tracker

Every CSSE topic as a checklist. Work through questions and tick off mastery — the first topic is free.

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Free

Mini Games

17 quick-fire maths games — from Squared Numbers to Angle Hunter — that build fluency without feeling like work.

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Free

Score Calculators

Standardised and raw score calculators built on the latest 2026 CSSE cohort data.

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One-off

Exam Papers & Exam Centre

Printed CSSE-style paper bundles by post, plus real mock-exam sittings at our Chelmsford exam centre.

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A cartoon pupil stacking number blocks from 1 squared to 10 squared

Mini games

Maths practice that feels like play.

Quick games for 8–10 year olds — squares, times tables, fractions, percentages and more. A minute a round, three to try for free, and the mental maths that makes the CSSE paper feel easy.