February 8, 2026
Posted in %, algebra, Arithmetic, death by chocolate, Decimals, Fast Food Maths, graphs, Middle School, units weight | Tagged block, calculate, cats, chocolate, death, dogs, dose, fatal, human, kill, lethal, percentage, theobromine, Valentine's Day, warning | Leave a Comment »
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 »
February 8, 2026

Chocolate contains a poison called Theobromine.
LD50 for Theobromine for cats is 200mg.
LD = Lethal Dose. LD50= Lethal Dose for 50% of the population. Cats in this case. This is how poison toxicity is measured.
According to The Royal Society of Chemistry, cats are hypersensitive to Theobromine but, as cats cannot taste sweetness, they are rarely poisoned.
Posted in %, death by chocolate, Fast Food Maths, Year 7 mathspig, Year 9 Mathspig | Tagged 9 lives, adult, calculate, cat, cats, chemical, chocolate, death, dog, how much, humans, kill, theobromine, toxic, won't | Leave a Comment »
January 17, 2026
Posted in base 2, Crypto, powers, Scientific Notation | Tagged $10 million, Australian open, calculate, competition, crazy, Crypto, fan, Jannik Sinner, Middle school, Nexo, odds, probability, tennis, undecillion, win | Leave a Comment »
January 15, 2026
Posted in 25 AMAZING NUMBER FOR 2025, Junior School, Middle School | Tagged 100m, 2025, Brianna SELBY, coldest, Death Valley, fastest, hottest, hurricane, Maurice GLEATON, Melissa, place, sprint, strongest, teen, wind | Leave a Comment »
January 10, 2026
Correction:
It was 43°C (109.4°F) in Melbourne when Mathspig was writing the post!!! I used the wrong heading – now corrected -when it was first published.
The Maximum temperature recorded for Melbourne was 46.4°C (115.5°F) in 2009.
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ANSWERS TO Q 6 – 10 BELOW




AMAZING ANSWERS





Posted in 25 AMAZING NUMBER FOR 2025, Middle School, Real Life Math, Year 7 mathspig, Year 9 Mathspig | Tagged $1 billion, 2025, earn, Middle school, million, Olympic, Prince, rates, real life, sports, star, statistics, youngest | Leave a Comment »
November 22, 2025
Posted in %, 10! or 10 Factorial, 25 AMAZING NUMBER FOR 2025, Decimals, Middle School, Real Life Math, Year 7 mathspig, Year 9 Mathspig | Tagged 1 MILLION SECONDS, amazing, blood, blood spurt, CUBIC, factorial, flavor, Foot Loops, how far, Middle school, Numbers, poop, rates, real life, SQUIRT | Leave a Comment »
November 16, 2025
ANSWERS to 16 – 20 below







Scientific American link



Posted in 25 AMAZING NUMBER FOR 2025 | Tagged 25, amazing, buckingham palace, crazy, facts, Fun, longest, Math, Maths, Middle school, Mt Everest, Numbers, tongue | Leave a Comment »
November 14, 2025
Posted in 25 AMAZING NUMBER FOR 2025, Junior School, Middle School | Tagged 25, amazing, animal has the most teeth, crazy, facts, Fun, Math, Maths, Middle school, number, Numbers, tallest teen | 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 »