🏆 Math Topic

Math Olympiad Practice by Grade

Use the grade groups below to move from visual multi-step problems into number theory, counting, and logic challenges drawn from ZogMath's 26 live Olympiad games.

26 games 6 grade bands English + Chinese

Choose a Practice Route

Use the grade groups to narrow the collection before choosing a problem. The games cover visual models, number patterns, counting, logic, and multi-step relationships.

This page organizes practice by grade. The companion category page keeps all live Olympiad games together when you want to browse the complete inventory.

Want the complete game inventory? browse all 26 Math Olympiad games.

Start With These Games

Chickens and Rabbits game cover illustration
Level 2

Chickens and Rabbits

Classic heads-and-legs puzzle — adjust counts until both totals match

Play now Tree Planting game cover illustration
Level 2

Tree Planting

Place trees along a path to learn the trees-and-intervals spacing rule

Play now Travel & Meet game cover illustration
Level 3

Travel & Meet

Watch the animation and calculate meeting time or distance

Play now Sum, Difference & Multiples game cover illustration
Level 2

Sum, Difference & Multiples

Use bar diagrams to visualize sum, difference and multiple relationships

Play now Work Rate game cover illustration
Level 3

Work Rate

Calculate how long two workers finish a job together

Play now Age Puzzle game cover illustration
Level 2

Age Puzzle

Drag the timeline to see age changes and find the year that satisfies the condition

Play now Logic Grid game cover illustration
Level 3

Logic Grid

Use clues to fill the deduction grid and find the correct combination

Play now Excess and Shortage game cover illustration
Level 3

Excess and Shortage

Analyze two distribution plans — the excess and shortage reveal the total

Play now Sequence Discovery game cover illustration
Level 2

Sequence Discovery

Discover Fibonacci, perfect squares and other complex sequence patterns

Play now Pigeonhole Principle game cover illustration
Level 3

Pigeonhole Principle

Understand worst-case scenarios and use the pigeonhole principle to count

Play now Inclusion-Exclusion game cover illustration
Level 3

Inclusion-Exclusion

Use Venn diagrams to solve two-set and three-set counting overlap problems

Play now Magic Square game cover illustration
Level 3

Magic Square

Fill 1–9 into a 3×3 grid so every row, column and diagonal sums to 15

Play now Remainder Chase game cover illustration
Level 3

Remainder Chase

Solve remainder, modular arithmetic and LCM puzzles

Play now Mixture Problem game cover illustration
Level 3

Mixture Problem

Mix solutions of different concentrations to find the resulting percentage

Play now Square Formation game cover illustration
Level 2

Square Formation

Calculate outer ring count, total soldiers, layers and expansion in square arrays

Play now Digit Puzzle game cover illustration
Level 3

Digit Puzzle

Solve classic puzzles involving digit patterns, consecutive numbers and constraints

Play now Number Pyramid game cover illustration
Level 2

Number Pyramid

Each cell equals the sum of the two below it — find the number at the top

Play now Arithmetic Series game cover illustration
Level 3

Arithmetic Series

Apply the Gauss sum formula to arithmetic sequences and series

Play now Optimal Schedule game cover illustration
Level 3

Optimal Schedule

Apply Hua Luogeng's method to find the minimum completion time for a set of tasks

Play now GCD & LCM game cover illustration
Level 3

GCD & LCM

Find greatest common divisors and least common multiples with real-world applications

Play now Path Counting game cover illustration
Level 3

Path Counting

Count grid paths moving only right or down — discover Pascal's triangle in action

Play now Probability Spinner game cover illustration
Level 3

Probability Spinner

Understand probability through interactive spinner simulations

Play now Probability Experiment Lab game cover illustration
Level 3

Probability Experiment Lab

Simulate coins, dice, and bags to compare theoretical and experimental probability

Play now Matchstick Moves game cover illustration
Level 2

Matchstick Moves

Move one real seven-segment match to repair a number equation

Play now Collatz Cricket game cover illustration
Level 3

Collatz Cricket

Choose three two-digit starts, build each Collatz chain, and total the runs

Play now Tax Collector game cover illustration
Level 3

Tax Collector

Keep a chosen paycheck while the collector takes its remaining factors

Play now

Practice This Topic by Grade

These grade-specific pages narrow the same topic into practice sets matched to a student’s current level.