Mathematics games

01

Easy Online collection

Online games

A collection of interactive logic, observation, and strategy games that run directly in your browser.

Discover the online games

02

Intermediate 4 min

The hidden sequence

Observe the pattern, form a hypothesis and find the next number.

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03

Easy 5 min

The 24 challenge

Combine four numbers with arithmetic operations and reach the target.

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04

Advanced 7 min

Prime number grid

Recognize multiples and prime numbers before time runs out.

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05

Easy 5 min

Divisor hunt

Find all divisors hidden among twelve candidate numbers and check your reasoning.

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06

Intermediate 6 min

Secret code

Crack four different digits using clues about correct positions and misplaced digits.

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07

Intermediate 5 min

Fraction duel

Compare fractions, including equivalent fractions and fractions greater than one, with hints and explanations.

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08

Advanced 9 min

Simultaneous remainders

Find the smallest positive integer satisfying three remainder conditions.

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09

Advanced 8 min

Knights and knaves

Deduction with three people: truth-tellers and liars.

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10

Advanced 8 min

Reverse percentages

Find the initial value after two successive percentage changes.

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11

Advanced 8 min

How many divisors?

Count positive divisors using prime factorization.

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12

Advanced 9 min

Five in a line

Rebuild the order of five people from logic clues.

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13

Advanced 8 min

Interwoven fractions

Solve expressions combining addition, subtraction and division of fractions.

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14

Intermediate 7 min

Sieve of primes

Cross out multiples and discover primes step by step.

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15

Intermediate 8 min

5 × 5 nonograms

Fill the cells using row and column number clues.

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16

Intermediate 7 min

Magic squares

Complete a 3 × 3 magic square with the numbers 1 to 9.

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