Here is a 3-paragraph summary of the article for mathopen.com:
In Issue 64 of Double Maths First Thing, mathematician Colin kicks things off with a fun numerical observation: 64 is a perfect square in both hexadecimal and decimal notation. This kind of playful number curiosity is exactly the spirit Colin brings to his newsletter, which aims to show that mathematics is far more than memorizing formulas and following rules blindly. His enthusiasm for finding joy in numbers is infectious and sets the tone for each issue.
Colin also nearly fell into one of the internet's most notorious math traps, the classic ambiguous expression 6 divided by 2 times 3. These viral math problems are designed to spark debate because they exploit the way people apply order of operations differently. Rather than causing frustration, Colin uses moments like these to highlight how mathematical notation and conventions actually matter, and why clear communication in math is a skill worth developing.
At its heart, Double Maths First Thing is a newsletter for anyone who wants to see mathematics as a living, breathing subject full of wonder and discovery. Colin's approachable style makes even potentially confusing topics feel accessible and fun. Whether you are a seasoned mathematician or just math-curious, this newsletter offers a warm invitation to look at numbers in a new and exciting way.