Grade 4 Math Games (Ages 9–10)
Play Grade 4 GamesFourth grade math scales everything up: multi-digit multiplication, long division with remainders, equivalent fractions and fraction addition, first decimals, angles and symmetry, area formulas, and unit conversion. The common thread is place value — almost every grade 4 stumble traces back to shaky tens-hundreds-thousands thinking.
At this age games earn their keep in two ways. They keep fact fluency warm (a fourth grader who stops practicing facts loses speed just when long division starts to need it), and they make the new multi-step procedures — regrouping, remainders, equivalence — visible and self-checking instead of a mystery ritual.
The lists below are grouped by topic and ordered easiest-first. A typical fourth grader should split time between the arithmetic and fractions lists, with regular visits to geometry and measurement. Every game is free in the browser with no ads and no sign-up.
Counting & Numbers
- Greatest Least LabGrades 2–4A scramble of number tiles and one rule — tap them in order, smallest-first or biggest-first, and watch the lineup build.
- Number DetectiveGrades 2–4Clues arrive one at a time — stamp out every number each clue rules out until a single suspect remains, then make the arrest.
- Estimate Quantity QuayGrades 2–4About how many? Use a group of ten as your anchor to estimate the crowd, then reveal the real count.
Arithmetic
- Expanded Form ExpressGrades 2–4Break a number into its place-value parts (342 = 300 + 40 + 2) — or build it back.
- Place Value ForgeGrades 2–4Stack color-coded base-ten blocks into ones, tens and hundreds silos to forge target numbers. Build numbers, read the silos, and regroup ten of one place into one of the next.
- Number Line NavigatorGrades 2–4Pilot a probe along the number line: glide it to an exact value, and round numbers by parking on the nearest ten or hundred — the line shows which landmark is closer.
- Times Table TowerGrades 2–4Each fact lights up as a rows×columns dot array — skip-count it, dial the product, and ride the elevator up.
- Place Value PortGrades 2–4The crane lights one container on the pier — what is that digit really worth?
- Regroup RallyGrades 2–4Subtract big numbers column by column — borrow a ten when the top digit is too small.
- Column CrunchGrades 2–4Stack the numbers and crunch them one column at a time — ones, tens, hundreds — carrying and borrowing across the line to build each answer digit.
- Place-Value CentipedeGrades 2–4Aim your blaster at the digit segment in the right place and fire — a blasted digit becomes a 0 mushroom that holds its place, so 347 turns into 307.
- MTC PracticeGrades 3–4A timed Multiplication Tables Check drill — 25 facts from the 2–12 tables, 6 seconds each, just like the real Year 4 check.
- Division DashGrades 3–5A treat delivery needs sharing — work out the equal split and send the delivery.
- Rounding RidgeGrades 3–5A number-boulder rests between two camps — read the deciding digit and send it to the nearer one.
- Array ArchitectGrades 3–5Build big multiplications with the area model — split into tens + ones, multiply each part, then add.
- Roman Numeral RoadGrades 3–5Read Roman numerals into numbers, match a number to its numeral, or build one symbol by symbol.
- Rounding RapidsGrades 3–5Watch a number float on the rapids between two markers, decide which it drifts toward, and steer it to the nearer multiple.
- Galaxy DividersGrades 3–4Split a drifting ship swarm into equal docking bays — drag, tractor-beam or deal the ships round by round; leftovers escape to the pod as remainders.
- Estimation StationGrades 3–5Round to the nearest ten to estimate fast — round a number, or estimate a sum or difference by rounding each part first.
- Rounding Estimate SumGrades 3–4Round each number to its nearest ten or hundred, then estimate the sum, difference, or whether an answer is reasonable.
- Multiplication ComparisonGrades 3–4Two bars, one longer — build it, count how many times as long, or split it back to the unit with the bar model.
- Vector VanguardGrades 3–4Alien fleets attack in rectangular formations — read the ship count, dial a ROWS × COLUMNS plasma matrix whose area matches it, and FIRE before the fleet lands. Waves keep coming and keep growing.
- Prime ChompGrades 3–6Steer a muncher through a maze of numbers and chomp only the multiples, factors or primes the rule asks for while dodging the ghosts.
- Round DefenseGrades 3–4Numbered meteors rain on a row of cities labelled with tens, hundreds or thousands — tap the city each number rounds to and your interceptor launches from it to meet the meteor.
- Division SquadronGrades 3–5Fire your split cannon at an alien formation: tap ÷3 and the ships snap into rows of 3, every full row explodes, and the leftover ships — the remainder — dive at you.
- Multiply PongGrades 3–4Slide a paddle made of a times-table row so the right product meets a ball carrying 6 × 7, and return it before it gets past.
- Decimal DuelGrades 4–6Two decimals face off — pick <, =, or > and see which one really wins.
- Rounding ReefGrades 4–6A decimal is stuck between two round numbers — find the halfway flag and tap the nearer one.
- Decimal LabGrades 4–6Compose decimals from tenths and hundredths and watch a magnitude bar fill. Build exact decimals, beat a threshold, and land between two values — seeing exactly why 0.5 beats 0.45.
- Long Division DepotGrades 4–5Deal crates onto the trucks round by round — what's left in the pile is the remainder. Sharing IS the division!
- Division Remainder RanchGrades 4–5Pen the flock into equal pens — fill the whole pens, mind the sheep left over, and decide when a leftover still needs a pen.
- Factor DigGrades 4–6Drill number boulders apart with a factor that divides them, digging a factor tree down through the dirt until only prime gems are left.
- Factor ForgeGrades 4–6Hammer a number to cut two glowing ingots into equal bars (a shared factor) or stack them up to meet (a shared multiple).
- Prime FactoryGrades 4–6Dock rush! Numbers roll toward the shipping dock — SPLIT the composites into factor pairs, SHIP the primes whole. Watch out for sneaky 51s and 91s.
- Factor Pairs FarmGrades 4–5Plant crops into rows and columns until the field forms a perfect rectangle — every full rectangle is a factor pair.
Money & Finance
- Change MakerGrades 2–4Count up from the price to what the customer paid and hand back the exact change with coins and bills.
- Cash RegisterGrades 2–4Customers are lining up! Build each one's exact money in the tray and ring it up before their patience runs out — change counts up the real cashier way.
- Piggy PlanGrades 2–4Plan your savings: work out the total after a few weeks, how many weeks to reach a goal, or how much to save each week.
- Budget BossGrades 3–5Checkout rush! Groceries roll toward the gate — BUY what fits your wallet, SKIP what doesn't. Over-spend and the card declines. Land the budget to level up!
- Price DetectiveGrades 3–5One line on the receipt is wrong — find it! Check each price with your magnifying glass and tap the culprit.
- Savings Goal SummitGrades 3–5Save the same amount every week and climb the money mountain to the goal flag.
- Best Buy BazaarGrades 4–6Split each price into equal per-item shares to spot the real bargain — even when the bigger pack costs more.
Fractions
- Fraction FillGrades 2–4Read a glowing stained-glass tile and name the fraction it shows — lit pieces on top, all the pieces on the bottom.
- Compare FractionsGrades 3–5Pour each fraction into a glass tube on a balance scale, then declare which side is heavier — or call it equal — and watch the beam settle toward the truth.
- Compare Fraction CliffGrades 3–5Two climbers rest at fraction heights on a cliff — pick the sign (<, =, >) that compares who climbed higher.
- Equivalent ExpressGrades 3–5Scale a fraction up — fill the new bar until it reaches the same line, so 1/2 = 2/4 = 4/8.
- Fraction of a SetGrades 3–5Split a group of counters into equal rings, then collect just the fraction the mission asks for — a fraction of a set is fair sharing.
- Fraction FrontierGrades 3–5Chart fractions on a trail number line: plot a fraction, compare which is bigger, and add fractions by hopping — with equal fractions landing on the very same spot.
- Fraction FeastGrades 3–5Cater the party by fractions: serve a fraction of a tray of treats, or count all the slices in a mixed number — then plate exactly that many.
- Benchmark Fraction BayGrades 3–5Read a fraction bar against 0, ½, and 1 — is it nearest which landmark, and is it more or less than a half?
- Fraction StackGrades 3–5Steer falling fraction bricks into rows that are each one whole, and clear a row only when its bricks add up to exactly 1.
- Decimal ColumnsGrades 3–5Steer and cycle falling sticks of three decimal jewels so three equal values line up and clear, however they are written — 0.5, 0.50, 5 tenths or 50/100.
- Fraction DoctorGrades 3–5Steer falling two-part fraction capsules into the jar and line up 4 equal fractions — like 1/2, 2/4, 3/6 and 4/8 — to cure each virus fraction.
- Add Fraction ForgeGrades 4–6Hammer two same-bottom fraction ingots together and dial the combined top number to forge the sum.
- Fraction PropulsionGrades 4–6Balance twin warp cores running on different denominators — fill both to the same energy line to prove equivalent fractions and jump across the galaxy.
- Triple MatchGrades 4–5Fractions, decimals and percents are three costumes for one value. Read whichever form is shown and calibrate the meter to the matching percent.
- Simplify StationGrades 4–6Fold the fraction down — ÷ chips shrink top and bottom together while the value bar never moves.
- Fraction Estimation CoveGrades 4–6Round each fraction to the nearest benchmark, then combine them to estimate the sum or difference before the exact answer.
- Subtract Fraction ForgeGrades 4–6Chip a fraction piece off a fraction bar and forge a new bar to show what's left.
- Fraction AddGrades 4–6Give two fractions a matching bottom number, then add or subtract the tops — the common denominator is set for you; dial the numerator of the answer.
Ratios & Rates
- Recipe RescaleGrades 4–6Double it, halve it, or cook for a crowd — grow each ingredient bar to its correctly scaled amount and keep the recipe in proportion.
- Part-Whole PortGrades 4–6Load a crate to match a ratio — and feel the difference between '3 for every 2' and '3 out of every 5'.
- Mixing StationGrades 4–6Pour syrup and water until your mix tastes the same as the recipe ratio.
Geometry & Shapes
- Shape ShipyardGrades 1–4Inspect every 2-D shape in the yard: trace its straight sides and pointy corners and tap to count them, then know each one by name.
- Mirror LabGrades 3–5Complete the reflection: a glowing pattern sits on one side of the line — paint its mirror twin on the other. Build vertical, horizontal and 180° rotational symmetry, one cell at a time.
- Quad QuestGrades 3–5Shapes glide toward the escape line — name each one by its most specific class before it crosses. Miss and the property marks teach you why.
- Symmetry StudioGrades 2–4Fold shapes, letters and symbols along their lines of symmetry — keep every line where both halves land exactly on top.
- Congruent CrewGrades 3–5Spot the congruent twin (same shape and size), the similar scaled copy, or the odd shape out.
- Plot ArchitectGrades 3–5Survey neon plots on a grid: drag the corner to size width and height. Hit target areas, fence target perimeters, and learn to tell area from perimeter when both must match.
- Solid StationGrades 3–6Tap every face, edge and vertex on real spinning solids — hidden parts too — then prove Euler: F + V − E = 2.
- Tessellation TilesGrades 3–5Lay tiles to cover a floor with no gaps, patch a missing tile, and figure out which shapes tile perfectly.
- Angle AimGrades 4–6Aim the observatory arm and read its opening against the corner square — acute, right, or obtuse.
- Angle Pairs PostGrades 4–6Given one angle, work out its missing partner: complementary (90°), supplementary (180°), or vertical (equal).
- Triangle TacticsGrades 4–6Read the tick marks and corner clues, then name every triangle by its sides and by its angles.
- Net NavigatorGrades 4–6Unfold it in your head — match each 3D solid to the flat net that folds back into it, or fold a net into its solid.
- Angle ArsenalGrades 4–6Command an orbital protractor cannon: dial the exact angle to vaporize targets. Measure and estimate angles, sort acute/right/obtuse, and compute complements and supplements under fire.
- Perimeter Area ParkGrades 4–5Resize a rectangle to hit a target area or fence length — and watch how one can change while the other stays put.
- Line Ray SegmentGrades 4–6Build and spot lines, rays, and segments by their ends, then turn a line to make a pair parallel, perpendicular, or intersecting.
- Angle CubeGrades 4–5Hop around a pyramid of cubes by tapping a turn — ↺ 90°, ↻ 45°, 180° — so the hopper faces the gold cube, measuring every angle between where you face and where you need to go.
- Transformer GridGrades 4–6Slide, flip, or turn the beacon — then tap the exact cell where its image lands and watch the move play out.
- Circle LabGrades 4–6Measure a circle with its own parts: lay radius sticks to build the diameter, wrap diameter ribbons around the rim, and discover π ≈ 3.14 for yourself.
Coordinates & Algebra
- Coordinate CommandGrades 4–6Command a four-quadrant sea: fire on the coordinates HQ radios and report the enemy blips your radar spots.
- One-Step StationGrades 4–6Every equation is a machine — dial x until the output hits the goal, or undo the machine with the inverse operation.
- Inequality IsleGrades 4–6Place the boundary of an inequality on the number line, find the smallest solution, or count how many whole numbers make it true.
- Expression LabGrades 4–6Pour the value of x into the expression, then collapse the tiles one legal step at a time — multiply before you add, parentheses first.
- Input Output TableGrades 4–6Feed numbers through a rule machine and fill the table — find outputs, work out missing inputs, or crack the hidden rule.
- Function FactoryGrades 4–6Number pods ride a neon conveyor through machines like ×2 and +3, morphing as they go. Tune the gates to fill each order, reverse-engineer inputs, and crack mystery rules.
- Balance ScaleGrades 4–6Tip the beam level to solve the equation — balance the pans, solve for x, and build equal weights on both sides.
- Order OpsGrades 4–6Defuse the falling expression bombs! Tap the operations in PEMDAS order — each correct tap collapses the math in place before the bomb hits the line.
Data & Probability
- Bar Graph BayGrades 2–4Read the harbor's bar chart of the day's catch to answer how many, how many more, and how many altogether.
- Pictograph PierGrades 2–4Read the pier catch board where each icon is worth the KEY number, then count by the key.
- Poll PositionGrades 2–4A data-reading kart race! Answer tally and bar-chart questions fast to BOOST past the pace kart — first across the finish line wins the lap.
- Bar Graph BuilderGrades 2–4Read the bars to answer how many, how many more, and which category won.
- Line Graph LabGrades 3–5Follow a line graph over time and tap the highest point, the lowest, or the exact reading.
- Likelihood LineGrades 3–5Every chance lives on one line from impossible to certain — count the winning outcomes and place the event where it belongs.
- Line Plot LabGrades 3–5Read a line plot of stacked ×’s: count the data over one value, total it all up, spot the most common value, or work out the range.
- Pie LabGrades 3–5Pie counter rush! Customers order fractions — tap exactly those slices onto the tray and serve before their patience runs out.
- Frequency Table FortGrades 3–5Turn tally marks into a frequency table — count a row, total the column, or find how many more.
- Mean MachineGrades 4–6Feed number tiles into the Mean Machine, share the total evenly, and dial the average.
- Quantum SpinnerGrades 4–6Build a probability spinner: set how many sectors win, then spin. Match a target chance as a fraction, shape likelihoods (certain/even/unlikely), and watch experiments converge on the theory in a live bar chart.
- Stat LabGrades 4–6Raise and lower data bars and watch the mean, median and range shift live. Balance the mean onto a target line, centre the median, and set the range — statistics you can see.
- Outcome OrchardGrades 4–6Grow the branching tree of every choice combination and count the leaves — that's why you multiply the options.
- Probability PathGrades 4–6Tap every marble into the tray and watch the probability fraction build itself — then spin 20 times to test it!
Time
- Elapsed ExpressGrades 3–5Wind an analog clock forward from the start time to the end and read how much time went by, even past 12.
- Stopwatch SprintGrades 3–5Read the racing stopwatch in minutes and seconds, add up laps, and find split gaps — carrying every 60 seconds into a minute.
- Time TeleporterGrades 4–6Convert between time units — minutes to hours, hours to days, and 24-hour to 12-hour time.
- Military Time MissionGrades 4–6Convert between 12-hour AM/PM and 24-hour time with a day-bar that shows where each hour lands.
- Schedule StationGrades 4–6Work the departures board — tap the train that gets you there on time, measure journeys from the timetable, and catch your connection before the bus pulls away!
Measurement
- Ruler RangerGrades 2–4Objects march across the ruler — read each length before it escapes! Watch for the classic trap: the start isn't always at zero (end − start).
- Unit Picker ParkGrades 2–4Pick the sensible unit — a too-small one swarms, a too-big one won't even fill once; the right one fits just so.
- Mass MarketGrades 2–4Read the needle to the mass, weigh up heavier versus lighter, or stack weights until the pans balance.
- Balance BayGrades 2–4Weigh the catch on a balance scale: add kilo-weights until the beam sits level to find a mass, or make one pan heavier or lighter.
- Liquid LabGrades 2–4Pour and measure capacity in ml: fill a measuring jug to a target, read the level off the scale, and combine two pours into one total.
- Capacity CanyonGrades 2–4Pick the sensible capacity, tap which container holds more, or line jugs up from least to most — millilitres and litres.
- Perimeter PaceGrades 3–5A runner laps the field — add up every side to set the full lap distance around the rectangle.
- Area AvenueGrades 3–5Pave the avenue with square tiles — count the grid (rows × columns) to find the area.
- Perimeter PatrolGrades 3–5Walk the fence around each shape — tap every side to lay it and the meter counts the units all the way around, then lock in the perimeter.
- Convert LabGrades 3–6Drag the measuring gauge to convert metric units — mm·cm·m, g·kg, mL·L. The level you fill IS the answer.
- Temp TrekGrades 3–5Read and set a thermometer in °C — including below zero, where the numbers go negative. Track temperatures that rise and drop across the zero line.
- Scale ReaderGrades 3–5Inspection rush! Instruments hit the bench — read the needle between the ticks before the timer sweeps. APPROVED stamps for sharp eyes.
- Metric LadderGrades 4–6Walk a number down the metric staircase — each step is one ×10 and one decimal place — until it lands on the target unit.
- Area AceGrades 4–6Fill rows of unit squares, fold the triangle from its rectangle, slice-and-slide the parallelogram — build every area.
- Measure LemmingsGrades 4–6Build a plank bridge of exactly the right length — mixing metres and centimetres, centimetres and millimetres, or feet and inches — before the marching lemmings reach the gap.
Patterns & Logic
- Pattern WeaverGrades 1–4Beat the shuttle to the gap! Tap the bead that keeps the pattern going before the shuttle lands — finished strands weave into a growing ribbon.
- Sequence SprintGrades 2–4A robot conveyor belt rolls numbers past — spot the pattern and stamp the missing crate before it rolls off.
- True-False CircuitGrades 2–4Equations stream toward the OUT gate — judge each TRUE or FALSE before it slips through. Fast streaks surge the circuit faster!
- Number SudokuGrades 2–5Solve a 4×4 mini-sudoku so every row, column and 2×2 box holds 1, 2, 3 and 4 exactly once.
- River CrossingGrades 2–5Ferry the animals and cargo across the river — but never leave a hunter alone with its food!
- Word Problem WharfGrades 3–5A story lands at the wharf — spot the key word to pick the right operation, then compute the one-step answer.
- Sequence RacerGrades 3–6The number sequence is your race track: crack the rule (+4, −3, ×2, growing jumps), tap the next number and your car zooms forward — beat the pace car!
- Venn VoyageGrades 3–6Numbers drift toward two rule rings — tap the zone where each belongs (left, right, overlap or neither) and watch the diagram fill up.
- Algorithm ArcadeGrades 3–6Program the delivery bot and hit RUN — the moment of truth! Battery drains while you think, crashes replay so you can fix the route, shortest path earns a ★.
- Balance Puzzle BayGrades 3–6Set the mystery shape's weight so a hanging mobile hangs level — the beam tilts live until both arms match.
- Nim NookGrades 3–6Take the winning number of tokens to trap the foe — leave a multiple of four and the game is yours.
- Tower of HanoiGrades 3–6Move the whole stack of disks to the trophy peg — but a bigger disk can never sit on a smaller one!
- Magic Square MineGrades 3–6Fill the 3×3 gem grid so every row, column and diagonal adds up to the same magic number.
- Logic GridGrades 3–6Read the clues, rule out what can’t be true with ✗, and pin down each match with ✓ — one solution, pure deduction.
Common Questions
What math should a 4th grader know?
Grade 4 centers on multi-digit multiplication and division (including remainders), factors and multiples, equivalent fractions and adding fractions with like denominators, decimal notation for tenths and hundredths, measuring and classifying angles, area and perimeter formulas, and converting units of measure.
How can I help my child with long division?
Make sure multiplication and subtraction facts are fast first — long division fails on fluency, not on the procedure. Then practice with small friendly numbers where your child can estimate the answer before dividing. The long-division game below scaffolds exactly that: estimate, multiply, subtract, bring down, with the remainder made visible.
Why do kids find equivalent fractions hard?
Because taught as a rule (“multiply top and bottom by the same number”) it is arbitrary. Seen as a picture — the same amount cut into more pieces — it is obvious. The fraction games here always tie the arithmetic to the picture, so equivalence becomes something your child can see and verify.
Are these games enough, or does my 4th grader still need worksheets?
Games handle the practice-and-fluency side excellently and school handles instruction; most families need nothing more. If your child wants extra structure, use the games as the daily warm-up and save written work for showing multi-step reasoning.
Math Games for Other Grades
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