Archive for the ‘decimals’ Category
February 8, 2026
Posted in %, algebra, decimals, Fast Food Maths, units weight | Tagged %, blocks, calculation, cats, chocolate, danger, death, dogs, dose, kills, LD50, lethal, Middle school, squares, theobromine | Leave a Comment »
October 8, 2025
Posted in co - ordinates, decimals, direct proportion, graphs, Linear Equation, median, Middle School, powers, probability, Rates, Ratio, Scientific Notation, Simultaneous Equations, trigonometry, units length, units speed, Zombie Maths | Tagged All, crazy, Fun, graphs, Halloween, Math, rates, ratio, Simultaneous equations, The Walking Dead, TOPICS, trigonometry, World War Z, Year 8, Zombie | Leave a Comment »
September 6, 2025
METRIC units post here.
Could you return SINNER’S serve? Do the math!!!!!!
The ball leaves Sinner’s racket and hits the ground 0.31 secs later.
Go here to see why this simplified calculation works!
YOUR REACTION TIME Calculators
1. Human Bench Mark here
Mathspig reaction time = 351 milliseconds
2. Just Park here
Mathspig reaction time = 565 milliseconds
3. Washington Edu Reaction Test here
Mathspig reaction time = 0.371 seconds
Convert Millisecnds to Seconds
Mathspig’s best, best, best reaction time = O.351 sec
Yannik Sinner’s Serve hits the court 0.31 seconds after leaving his racket.
The fastest serve EVER was delivered by Australian Sam Groth @ 163 mph.
That serve takes 0.25 sec to land on the other side of the court.
Posted in algebra, Arithmetic, decimals, Middle School, The Terrifying Math of Tennis, units speed | Tagged Can you return Sinner's Serve?, champion, court, Jannik Sinner, Math, Middle school, No 1, reaction, reaction time, seed, serve, speed, tennis, USA OPEN, USA units | Leave a Comment »
September 6, 2025
USA units post here.
Could you return SINNER’S serve? Do the maths!!!!!!
The ball leaves Sinner’s racket and hits the ground 0.31 secs later.
Go here to see why this simplified calculation works!
YOUR REACTION TIME Calculators
1. Human Bench Mark here
Mathspig reaction time = 351 milliseconds
2. Just Park here
Mathspig reaction time = 565 milliseconds
3. Washington Edu Reaction Test here
Mathspig reaction time = 0.371 seconds
Convert Millisecnds to Seconds
Mathspig’s best, best, best reaction time = O.351 sec
Yannik Sinner’s Serve hits the court 0.31 seconds after leaving his racket.
The fastest serve EVER was delivered by Australian Sam Groth @ 263 kph.
That serve takes 0.25 sec to land on the other side of the court.
Posted in algebra, Arithmetic, decimals, Middle School, The Terrifying Math of Tennis, units speed | Tagged Can you return Sinner's Serve?, challenge, champion, court, Jannik Sinner, Maths, metric, Middle school, No 1, reaction time, serve, speed, tennis, Time, USA OPEN | Leave a Comment »
August 12, 2024
You have all seen those Olympic Medal Charts. USA on top. But really the medal count should be based on the number of:
GOLD MEDALS PER HEAD OF POPULATION
We Aussies think we are sports MAD, that we punch above our weight! But those crazy Dutch have beaten us. Here are the TOP 25 medal-winning countries reordered per MILLION of population.
Posted in decimals, Middle School, Olympic Maths | Tagged 2024, Aussie, country, Dutch, Georgia, Gold Medals, Ireland, List, Netherlands, Norway, Olympic Games, Paris, per head, population, Winner | Leave a Comment »
July 7, 2024
OR Lego Man Speed = 0.25 mph
Posted in decimals, Junior School, Lego Maths, Lego Olympics, Middle School, Olympic Maths, Ratio, units length, units speed | Tagged 2024, Carl Lewis, exercise, Fun, GAMES, Lego, marathon, Math, Middle school, Olympic, Paris, ratio, scale | Leave a Comment »
June 13, 2024
METRIC units post here.
Could you return SINNER’S serve? Do the math!!!!!!
The ball leaves Sinner’s racket and hits the ground 0.31 secs later.
Go here to see why this simplified calculation works!
YOUR REACTION TIME Calculators
1. Human Bench Mark here
Mathspig reaction time = 351 milliseconds
2. Just Park here
Mathspig reaction time = 565 milliseconds
3. Washington Edu Reaction Test here
Mathspig reaction time = 0.371 seconds
Convert Millisecnds to Seconds
Mathspig’s best, best, best reaction time = O.351 sec
Yannik Sinner’s Serve hits the court 0.31 seconds after leaving his racket.
The fastest serve EVER was delivered by Australian Sam Groth @ 163 mph.
That serve takes 0.25 sec to land on the other side of the court.
Posted in algebra, Arithmetic, decimals, Middle School, The Terrifying Math of Tennis, units speed | Tagged Can you return Sinner's Serve?, champion, court, Jannik Sinner, No 1, reaction, reaction time, seed, serve, speed, tennis, test, Time, USA units, Wimbleton | 3 Comments »
June 13, 2024
USA units post here.
Could you return SINNER’S serve? Do the maths!!!!!!
The ball leaves Sinner’s racket and hits the ground 0.31 secs later.
Go here to see why this simplified calculation works!
YOUR REACTION TIME Calculators
1. Human Bench Mark here
Mathspig reaction time = 351 milliseconds
2. Just Park here
Mathspig reaction time = 565 milliseconds
3. Washington Edu Reaction Test here
Mathspig reaction time = 0.371 seconds
Convert Millisecnds to Seconds
Mathspig’s best, best, best reaction time = O.351 sec
Yannik Sinner’s Serve hits the court 0.31 seconds after leaving his racket.
The fastest serve EVER was delivered by Australian Sam Groth @ 263 kph.
That serve takes 0.25 sec to land on the other side of the court.
Posted in algebra, Arithmetic, decimals, Middle School, The Terrifying Math of Tennis, units speed | Tagged Can you return Sinner's Serve?, champion, court, Jannik Sinner, metric, No 1, reaction, reaction time, seed, serve, speed, tennis, test, Time, Wimbleton | 3 Comments »
September 15, 2023
*In 1970 the Victorian Government made the wearing of seat belts compulsory.
*The first government in the west to do so.
*Within 14 months the other Australian states followed.
*The road toll in Australia dropped:
1969 3,382 road deaths per year
1988 2,887 deaths
2018 1,135 deaths
2019…….1,194 deaths
2020…… 1,095 deaths
2021……..1,123 deaths
2022 …..1,194 deaths
Mathspig lived on a country police station before seat belts became compulsory and a number of kids she went to school with died in car accidents.
Three factors have reduced the road toll in Australia:
1. Wearing seat belts
2. Stopping drink driving
3. Introducing Airbags (from 1980s)
Our eyes can easily detect the blink (above) set a 300ms.
Ditto, the light flash (below), which is set to flash at 200 ms but it will drive you CRAZY if you look at it for too long.
The fabulous video (below) will show you the amazing details of the ms timing that saves lives in a car crash. You will see real car crash tests. And the frightening results too.
It was made by an engineer who worked for GMH or Holden as we call it in Australia.
Posted in Car Crash Maths, decimals, Decimals, Real World Math, Year 7 mathspig, Year 9 Mathspig | Tagged airbags, Australia, car, crash, crash dummies, decimals, ejector seat, GMH, jet, Math, Middle school, millisecond, road safety, road toll, seatbelts | Leave a Comment »
July 16, 2023
You will find all the ballistics stats you need here:
Posted in 10 Movie Cliches Debunked with Maths, Arithmetic, decimals, Hollywood Maths, Middle School, Movie Math, units length, units speed, Year 9 Mathspig | Tagged .40 caliber, ballistics, bullet, calculation, duck, element, Guardians of the Galaxy, gun, gun safety, John Wick, Middle school, movie cliche, Smith&Wesson, speed | Leave a Comment »
Chocolate can be fatal to dogs. As dogs are small they can easily eat enough chocolate to kill them. According to The Royal Society of Chemistry
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