★Sea otters hold hands while sleeping so they don't drift apart.★A group of flamingos is called a 'flamboyance'.★Cherophobia is an irrational fear of fun or happiness.★The first item ever sold on eBay was a broken laser pointer.★A snail can have up to 25,000 teeth on its tongue.★A group of ferrets is called a business.★If you lift a kangaroo's tail off the ground it can't hop.★Crows can recognize human faces and hold grudges for years.★Humans are the only animals that blush.★More than half of all people alive today have never made a phone call.★It takes about eight minutes for sunlight to reach Earth.★The inventor of the Pringles can is buried in one.★Sea cucumbers breathe through their butts.★Goldfish can recognize human faces.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★Saturn would float if you could find an ocean big enough.★Humans share 60% of their DNA with bananas.★Bananas are curved because they grow towards the sun.★The longest hiccuping spree lasted 68 years.★A rhinoceros' horn is made of keratin, the same stuff as hair.★A newborn panda is smaller than a mouse.★Polar bears have black skin under their white fur.★Cats can't taste sweetness.★Humans blink about 15 to 20 times per minute.★29th May is officially Put a Pillow on Your Fridge Day.★Avocados are toxic to most animals except humans.★A group of porcupines is called a prickle.★A hippo's sweat is pink.★Pineapples take about two years to grow.★There are more than 1,000 chemicals in a cup of coffee.★Koalas have fingerprints nearly identical to humans.★The Great Wall of China is not visible from space with the naked eye.★A newborn kangaroo is about the size of a jellybean.★A mosquito has 47 teeth.★Banging your head against a wall for one hour burns 150 calories.★Elephants are the only mammals that can't jump.★Sloths only poop about once a week.★Ketchup was once sold as medicine in the 1830s.★A lion's roar can be heard from up to 5 miles away.★Cows have best friends and get stressed when separated.★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★The shortest commercial flight in the world lasts just 57 seconds.★Rats laugh when tickled.★Horses physically cannot vomit.★Octopuses can taste with their arms.★The smell of freshly cut grass is actually a plant distress signal.★Voice actors for Mickey and Minnie Mouse got married in real life.★The first oranges weren't orange, they were green.★Octopuses have three hearts and blue blood.★A group of jellyfish is called a smack.★Dolphins sleep with one eye open.★Pigeons can recognize themselves in a mirror.★A flock of crows is known as a murder.★The Statue of Liberty was originally intended to be a lighthouse.★Dragonflies have been around for about 300 million years.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The Eiffel Tower can grow up to 6 inches taller during summer.★A hummingbird's heart can beat up to 1,260 times per minute.★A 'moment' was medieval unit of time equal to 90 seconds.★Snakes can help predict earthquakes.★The world's oldest known recipe is for beer.★Hippos can't actually swim, they walk along the riverbed.★Antarctica is the only continent without native reptiles or snakes.★A 'jiffy' is one trillionth of a second in physics.★Wombat poop is cube-shaped.★Most 'silver' spoons are actually made of stainless steel.★In Switzerland it is illegal to own just one guinea pig.★Bees can recognize individual human faces.★We have mapped more of Mars than of our own ocean floor.★The French language has 13 different words for 'kiss'.★Peanuts aren't nuts, they are legumes.★There's a species of jellyfish that is immortal.★Cotton candy was co-invented by a dentist.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★Ancient Egyptians slept on stone pillows.★A blue whale's heart is roughly the size of a small car.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★A group of owls is called a parliament.★Barbie's full name is Barbara Millicent Roberts.★Sharks existed on Earth before trees did.★An octopus has nine brains.★The Dutch were once the tallest people in the world.★A cloud can weigh more than a million pounds.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The Mona Lisa has no eyebrows or eyelashes.★Cashews grow on the outside of a fruit, not inside a shell.★Cows have regional accents, they moo differently in different areas.★The smell of rain has a name: petrichor.★Hot water freezes faster than cold water. This is called the Mpemba effect.★A group of frogs is called an army.★A jiffy is an actual unit of time: 1/100th of a second.★Pteronophobia is the fear of being tickled by feathers.★Pigs can't look up at the sky without rolling over.★Bananas are berries, but strawberries are not.★Nintendo was founded in 1889 as a playing card company.★The human brain uses about 20% of the body's total energy.★7% of American adults believe that chocolate milk comes from brown cows.★Starfish can regenerate their lost limbs.★Google processes more than 8.5 billion searches every single day.★Scotland's national animal is the unicorn.★A group of pandas is called an embarrassment.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A blue whale's tongue can weigh as much as an elephant.★You can hear a blue whale's heartbeat from more than two miles away.★Butterflies taste with their feet.★A shrimp's heart is located in its head.★The dot over the letter 'i' is called a tittle.★The moon has moonquakes.★Your nose can remember 50,000 different scents.★A day on Mercury lasts 59 Earth days.★A crocodile can't stick its tongue out.★It is physically impossible to hum while holding your nose.★There is a village in Norway called 'Hell' that freezes over every winter.★The longest recorded flight of a chicken lasted 13 seconds.★There are more stars in the universe than grains of sand on every beach on Earth.★Tigers have striped skin, not just striped fur.★Your tongue print is as unique as your fingerprint.★Dolphins have names for each other.★There are more possible iterations of a game of chess than atoms in the observable universe.★A snail can sleep for three years straight.★Sloths can hold their breath longer than dolphins can.★The Hawaiian alphabet has only 13 letters.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★Chewing gum while you chop onions helps keep you from crying.★Vincent van Gogh only sold one painting during his lifetime.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★Bubble wrap was originally invented as wallpaper.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★The average person spends six months of their life waiting for red lights to turn green.★A day on Venus is longer than a year on Venus.★A group of crows mobbing a predator is literally called a 'murder patrol'.★Ostriches can run faster than horses.★A bolt of lightning is five times hotter than the surface of the sun.★The first computer mouse was made of wood.★A day on Jupiter lasts only about 10 hours.★The average person walks the equivalent of three times around the world in a lifetime.

★Sea otters hold hands while sleeping so they don't drift apart.★A group of flamingos is called a 'flamboyance'.★Cherophobia is an irrational fear of fun or happiness.★The first item ever sold on eBay was a broken laser pointer.★A snail can have up to 25,000 teeth on its tongue.★A group of ferrets is called a business.★If you lift a kangaroo's tail off the ground it can't hop.★Crows can recognize human faces and hold grudges for years.★Humans are the only animals that blush.★More than half of all people alive today have never made a phone call.★It takes about eight minutes for sunlight to reach Earth.★The inventor of the Pringles can is buried in one.★Sea cucumbers breathe through their butts.★Goldfish can recognize human faces.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★Saturn would float if you could find an ocean big enough.★Humans share 60% of their DNA with bananas.★Bananas are curved because they grow towards the sun.★The longest hiccuping spree lasted 68 years.★A rhinoceros' horn is made of keratin, the same stuff as hair.★A newborn panda is smaller than a mouse.★Polar bears have black skin under their white fur.★Cats can't taste sweetness.★Humans blink about 15 to 20 times per minute.★29th May is officially Put a Pillow on Your Fridge Day.★Avocados are toxic to most animals except humans.★A group of porcupines is called a prickle.★A hippo's sweat is pink.★Pineapples take about two years to grow.★There are more than 1,000 chemicals in a cup of coffee.★Koalas have fingerprints nearly identical to humans.★The Great Wall of China is not visible from space with the naked eye.★A newborn kangaroo is about the size of a jellybean.★A mosquito has 47 teeth.★Banging your head against a wall for one hour burns 150 calories.★Elephants are the only mammals that can't jump.★Sloths only poop about once a week.★Ketchup was once sold as medicine in the 1830s.★A lion's roar can be heard from up to 5 miles away.★Cows have best friends and get stressed when separated.★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★The shortest commercial flight in the world lasts just 57 seconds.★Rats laugh when tickled.★Horses physically cannot vomit.★Octopuses can taste with their arms.★The smell of freshly cut grass is actually a plant distress signal.★Voice actors for Mickey and Minnie Mouse got married in real life.★The first oranges weren't orange, they were green.★Octopuses have three hearts and blue blood.★A group of jellyfish is called a smack.★Dolphins sleep with one eye open.★Pigeons can recognize themselves in a mirror.★A flock of crows is known as a murder.★The Statue of Liberty was originally intended to be a lighthouse.★Dragonflies have been around for about 300 million years.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The Eiffel Tower can grow up to 6 inches taller during summer.★A hummingbird's heart can beat up to 1,260 times per minute.★A 'moment' was medieval unit of time equal to 90 seconds.★Snakes can help predict earthquakes.★The world's oldest known recipe is for beer.★Hippos can't actually swim, they walk along the riverbed.★Antarctica is the only continent without native reptiles or snakes.★A 'jiffy' is one trillionth of a second in physics.★Wombat poop is cube-shaped.★Most 'silver' spoons are actually made of stainless steel.★In Switzerland it is illegal to own just one guinea pig.★Bees can recognize individual human faces.★We have mapped more of Mars than of our own ocean floor.★The French language has 13 different words for 'kiss'.★Peanuts aren't nuts, they are legumes.★There's a species of jellyfish that is immortal.★Cotton candy was co-invented by a dentist.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★Ancient Egyptians slept on stone pillows.★A blue whale's heart is roughly the size of a small car.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★A group of owls is called a parliament.★Barbie's full name is Barbara Millicent Roberts.★Sharks existed on Earth before trees did.★An octopus has nine brains.★The Dutch were once the tallest people in the world.★A cloud can weigh more than a million pounds.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The Mona Lisa has no eyebrows or eyelashes.★Cashews grow on the outside of a fruit, not inside a shell.★Cows have regional accents, they moo differently in different areas.★The smell of rain has a name: petrichor.★Hot water freezes faster than cold water. This is called the Mpemba effect.★A group of frogs is called an army.★A jiffy is an actual unit of time: 1/100th of a second.★Pteronophobia is the fear of being tickled by feathers.★Pigs can't look up at the sky without rolling over.★Bananas are berries, but strawberries are not.★Nintendo was founded in 1889 as a playing card company.★The human brain uses about 20% of the body's total energy.★7% of American adults believe that chocolate milk comes from brown cows.★Starfish can regenerate their lost limbs.★Google processes more than 8.5 billion searches every single day.★Scotland's national animal is the unicorn.★A group of pandas is called an embarrassment.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A blue whale's tongue can weigh as much as an elephant.★You can hear a blue whale's heartbeat from more than two miles away.★Butterflies taste with their feet.★A shrimp's heart is located in its head.★The dot over the letter 'i' is called a tittle.★The moon has moonquakes.★Your nose can remember 50,000 different scents.★A day on Mercury lasts 59 Earth days.★A crocodile can't stick its tongue out.★It is physically impossible to hum while holding your nose.★There is a village in Norway called 'Hell' that freezes over every winter.★The longest recorded flight of a chicken lasted 13 seconds.★There are more stars in the universe than grains of sand on every beach on Earth.★Tigers have striped skin, not just striped fur.★Your tongue print is as unique as your fingerprint.★Dolphins have names for each other.★There are more possible iterations of a game of chess than atoms in the observable universe.★A snail can sleep for three years straight.★Sloths can hold their breath longer than dolphins can.★The Hawaiian alphabet has only 13 letters.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★Chewing gum while you chop onions helps keep you from crying.★Vincent van Gogh only sold one painting during his lifetime.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★Bubble wrap was originally invented as wallpaper.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★The average person spends six months of their life waiting for red lights to turn green.★A day on Venus is longer than a year on Venus.★A group of crows mobbing a predator is literally called a 'murder patrol'.★Ostriches can run faster than horses.★A bolt of lightning is five times hotter than the surface of the sun.★The first computer mouse was made of wood.★A day on Jupiter lasts only about 10 hours.★The average person walks the equivalent of three times around the world in a lifetime.

Math sprint

Time

30

Score

0

Best

0

30 second sprint

Solve as many problems as you can before time runs out.

How to play Math sprint

A simple problem appears on screen, like 7 plus 4 or 9 minus 6. Type the answer or tap the number pad, then press enter. A new problem loads instantly. The clock runs for thirty seconds. Every right answer adds a point. Wrong answers shake the card and move you to the next problem. Your final score is total correct answers when the buzzer hits.

Tips

Lock in easy sums fast, do not overthink them
Skip a sum you are not sure of, wrong answers eat the clock
Use round numbers, 9 plus 7 becomes 10 plus 7 minus 1
Practice your times tables once a day, the speed gain is real

About Math sprint

Mental math practice was a staple of every classroom from the Victorian era until pocket calculators showed up. Speed math sprints made a comeback as a measurable way to keep brains sharp without flashcards. Our version handles addition, subtraction, multiplication and division across difficulty levels. Thirty seconds keeps the pace snappy: long enough to settle into a rhythm, short enough to play a few rounds during a coffee break.

More action games

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Aim trainer: Click as many targets as you can in 30 seconds.
Reaction time: How fast can you click when the screen turns green?
Mole mash: Bonk the moles before they pop back into their holes.
Stroop test: Read the colour, ignore the word. Brain twister in 30 seconds.
Color match: Tap when the two colours line up. Sounds simple, gets fast.

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