Grades 3–6 · Ages 8–12
Target Sum
Choose number tiles that add exactly to the target before the round ends.
Mental additionNumber composition
Independent games for browser play
Cool math games.
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Play original number, logic, fraction, and strategy challenges built for laptops, Chromebooks, tablets, and phones—without an account or download.
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8+7=15
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Grades 4–8 · Ages 9–14
Number Grid
Find the missing value in a row or column pattern using the fewest hints.
Pattern recognitionReasoning
Grades 4–7 · Ages 9–13
Fraction Match
Pair a fraction with its visual model and equivalent decimal.
FractionsDecimals
Grades 3–6 · Ages 8–12
Multiplication Sprint
Solve a focused set of multiplication facts while accuracy matters more than speed.
Multiplication factsMental math
Grades 3–7 · Ages 8–13
Balance Builder
Complete an equation by keeping both sides of a visual balance equal.
EqualityMissing values
Grades 4–8 · Ages 9–14
Logic Lights
Switch every light on while each move changes a predictable group of neighbors.
PlanningCause and effect
Grades 4–8 · Ages 9–14
Sequence Detective
Compare candidate rules and identify the one that fits every number in a sequence.
Pattern rulesElimination
Grades 4–7 · Ages 9–13
Decimal Duel
Choose the greater decimal and use place value—not digit length—to decide.
Decimal comparisonPlace value
Grades 4–7 · Ages 9–13
Factor Pairs
Build every whole-number factor pair for a target without repeating a pair.
FactorsMultiplication
Grades 4–7 · Ages 9–13
Division Remainder Lab
Write a quotient and remainder, then verify that they rebuild the dividend.
Whole-number divisionRemainders
Grades 5–8 · Ages 10–14
Equation Maker
Arrange four number and operation tiles into a true equation for the target.
OperationsOrder of operations
Grades 4–8 · Ages 9–14
Odd One Out
Find the value that breaks a stated mathematical rule and explain the evidence.
ClassificationProperties of numbers
Grades 3–7 · Ages 8–13
Route Reasoner
Plan a path across a grid while obeying direction and obstacle constraints.
PlanningCoordinates
Grades 5–8 · Ages 10–14
Prime Sorter
Sort numbers as prime or composite and inspect a factor when a number is composite.
Prime numbersFactors
Grades 3–6 · Ages 8–12
Fraction Number Line
Place a fraction at the matching position between zero and one.
Fraction magnitudeNumber lines
Find the right fit
Browse by thinking skill
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Build number sense
Math Games
Practice arithmetic and flexible number thinking through short, replayable challenges. Each game explains the skill it uses, the controls, and the limits of what it can teach.
Explore math games →◇Reason step by step
Logic Games
Use patterns, constraints, and elimination instead of guessing. These games reward a clear plan and make it easy to review why an answer worked.
Explore logic games →123See useful relationships
Number Games
Explore sums, factors, fractions, and place value with visual feedback designed for quick practice on a laptop, Chromebook, tablet, or phone.
Explore number games →Learn beyond the score
Guides for thoughtful play
Editorial standards · 8 min read
How We Test Browser Math Games
Our repeatable method for checking learning fit, controls, privacy, accessibility, and classroom practicality.
Read the guide →Parents & teachers · 9 min read
How to Choose a Math Game by Grade and Skill
A practical way to match a browser game to what a learner knows now and what they should practice next.
Read the guide →Parents & teachers · 8 min read
A Parent Checklist for Safer Browser Games
What to inspect before a child opens a free game: ads, accounts, chat, permissions, links, and data storage.
Read the guide →Game walkthrough · 9 min read
Target Sum Strategy Guide: Build Totals Without Guessing
A worked strategy for choosing number tiles, checking the running total, and finding a second solution in Target Sum.
Read the guide →Game walkthrough · 10 min read
Decimal Duel Guide: Compare Decimals by Place Value
Use aligned place values, equivalent zeros, and concrete comparisons to avoid the most common Decimal Duel mistakes.
Read the guide →Game walkthrough · 9 min read
Logic Lights Strategy: Plan Moves on the 3 × 3 Board
Understand the neighbor rule, avoid random tapping, and solve Logic Lights with repeatable observation and reset strategies.
Read the guide →Game walkthrough · 10 min read
Factor Pairs Guide: Find Every Pair in Order
A systematic search method for Factor Pairs, with worked examples for 36 and 48 and a clear stopping rule.
Read the guide →Game walkthrough · 9 min read
Fraction Number Line Guide: Count Intervals, Not Marks
Place fractions accurately between zero and one by partitioning equal intervals and interpreting numerator and denominator.
Read the guide →Game walkthrough · 9 min read
Multiplication Sprint Practice Plan: Accuracy Before Speed
A five-day practice routine that uses short rounds, error review, and adjustable fact ranges without turning every session into a race.
Read the guide →Game walkthrough · 9 min read
Balance Builder Guide: Keep Both Sides Equal
Use inverse operations and a balance model to solve missing-value equations without treating the equals sign as an instruction to calculate.
Read the guide →Game walkthrough · 8 min read
Number Grid Strategy: Find the Missing Value by Structure
A repeatable method for reading rows and columns, testing a pattern, and checking the missing value in Number Grid.
Read the guide →Logic strategy · 9 min read
Sequence Detective: Test a Rule, Not Just the Next Number
Compare candidate rules across every term, recognize alternating patterns, and explain why a tempting sequence rule fails.
Read the guide →Game walkthrough · 9 min read
Division Remainder Guide: Check with Multiplication
Find quotient and remainder, enforce the remainder rule, and verify every answer with divisor × quotient + remainder.
Read the guide →Number strategy · 9 min read
Prime Sorter Guide: A Factor Test That Stops on Time
Classify whole numbers as prime or composite by checking possible divisors only through the square root.
Read the guide →Fraction strategy · 9 min read
Fraction Match Guide: Prove Two Representations Are Equal
Connect fractions, decimals, and area models by converting or scaling them instead of matching by visual resemblance.
Read the guide →For adults helping learners
Know what a game practices before pressing Play.
Our notes separate tested behavior from educational judgment, name limitations, and give you a concrete way to use each activity.