MENTAL MATH → MATH OLYMPIAD

Launch your math mission.

CREST Champs takes students from everyday mental math to international Olympiad training — one mission, one streak, one skill at a time.

150+ skill missions 40+ competitions archived No credit card required

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CURRICULUM

One path. Every level.

From mental math warm-ups to Olympiad training — see exactly where you're headed next.

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Mental Math Foundations

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Arithmetic & Number Sense

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Algebra Basics

Geometry & Measurement

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Number Theory & Combinatorics

Olympiad Training

FREE PRACTICE · MENTAL MATH

Daily mental math challenges, level by level.

  • 5m

    Bite-sized daily challenges

    Short, focused mental math sessions pitched to the right level — no burnout, just steady reps.

  • Adaptive difficulty

    Every challenge adjusts to how a student is actually performing, question by question.

  • 🔥

    Streaks that build habits

    A visible streak and progress bar turn practice into something kids want to keep going.

Today's Mission — Fractions

🔥 12-day streak
1. Simplify 18/24
2. Add 2/5 + 3/10
3. Compare 5/6 vs 7/9
4. Convert 0.75 to a fraction
5. Word problem: sharing pizza

Every challenge earns XP and badges

Gamified progress keeps daily practice motivating, not a chore.

🔥

30-Day Streak

Mental Math Master

🎯

Perfect Week

Speed Solver

1Aanya R.2,340 XP
2Marcus T.2,190 XP
3Wei L.2,050 XP
4You1,870 XP
CLASSES

Want live, 1:1 guidance?

Free Practice, the Concepts Library, and the Competition Archive are free, always. When a student wants personalized coaching, we offer live 1:1 tutoring with an expert instructor — matched to their exact level and pace.

Everything above is free. 1:1 tutoring is the one paid add-on — book a free demo, no obligation.

1:1

Personal Tutoring

One-on-one sessions matched to a student's exact level and pace, across any topic in the curriculum — from everyday mental math through Olympiad prep.

Request a Free Demo

Tell us a bit about your child and we'll set up a no-cost trial class.

OLYMPIAD ZONE

The training camp for competitive math.

Advanced technique lessons — invariants, the pigeonhole principle, inequalities, proof-writing — timed mock tests that simulate real exam conditions, and a monthly CREST Champs contest with its own leaderboard.

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Proof Master

Mock Test Ace

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Inequality Pro

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Monthly Top 10

1Aanya R.Mock Test: 98%
2Marcus T.Mock Test: 95%
3Wei L.Mock Test: 93%
4YouMock Test: 88%
COMPETITION ARCHIVE

Every competition, at the source.

Direct links to real past papers on each organization's own official site — the papers themselves are copyrighted by their organizers, so we point you straight to them rather than hosting copies.

AMC 8 / 10 / 12

Official archive via MAA

View on MAA.org →

International Mathematical Olympiad

Papers from 1959–2025

View official archive →

Math Kangaroo

Papers from 1998–2025

View on MathKangaroo.org →

UK Primary / Junior / Intermediate Challenge

Recent years free via UKMT

View on UKMT.org →
STYLE PAPERS

Practice papers, same format.

Original CREST Champs problem sets built to match the format, timing, and difficulty of each competition — fully our own content, so there's no copyright gray area, and no waiting on a real contest date to practice under real conditions.

AMC-Style Papers

25 questions · 75 minutes

Start a Style Paper →

IMO-Style Problem Sets

Proof-based · untimed

Start a Style Paper →

Math Kangaroo-Style Papers

24–30 questions · 75 minutes

Start a Style Paper →

UK Challenge-Style Papers

25 questions · 60 minutes

Start a Style Paper →
WHAT FAMILIES SAY

Trusted by students and parents alike.

"My daughter went from dreading math homework to asking for 'one more mission' before bed. The streak system actually works."

PS

Priya S.

Parent, Grade 5

"I used the AMC archive to practice real past papers. Having the actual questions, not just similar ones, made all the difference."

JK

Jordan K.

Student, Grade 9

"The learning path made it obvious what to study next. No more guessing which topic actually needed work."

RM

Rahul M.

Parent, Grade 8

JOIN CREST CHAMPS

Ready for liftoff?

Start with a free mission today — no credit card required.

Start Learning Free