Math Nerd 1729

@mathnerd1729.bsky.social

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An autistic aro-ace rambling at random times TikTok: @mathnerd1729 YouTube: @MathNerd1729 Discord: @AroAceNerd1729 Tumblr: @autisticaroace Reddit: u/ANormalCartoonNerd Instagram: @mathsnerd1729

Three different ways to show that 18 times 35 is 630: Method 1 is the traditional algorithm involving carrying and adding. Method 2 is rewriting 18 as 20 - 2 then applying the distributive property to get 700 - 70 = 630. Method 3 is imagining an 18 by 35 rectangle, cutting it into two 9 by 35 rectangles, and rearranging them to a 9 by 70 rectangle which leaves the total area of 630 unchanged. Which method did you prefer?
Red Title: "Dear Students, this is why we learn algebra!" On the left-hand side, we see the minimum of TEN kinematics formulas you'd have to memorize if you cannot rearrange equations. On the right-hand side, we see the 3 usually memorized kinematics formulas [along with a clarification that the last one can technically be derived from the previous two by solving for time in the second then substituting into the first and simplifying]. Uniform acceleration is assumed in both cases.
In triangle ABC, M is the midpoint of line segment BC & line segment AM is perpendicular to line segment BC. Given that line segment AM has length 6 centimeters and line segment BC has length 7 centimeters, what is the perimeter of triangle ABC in millimeters rounded to the nearest whole number? [1 centimeter = 10 millimeters] A) 139 B) 140 C) 209 D) 210
Happy Birthday, Carl Friedrich Gauss! CARL + GAUSS = SOLVER The equation above shows a proper addition, but with each digit replaced by a unique letter. Find the value of: C × A × RL - (G × A ÷ U + S + S)
How Numerology "Proves" Calculus Demonic Calculus was found independently by Newton & Leibniz Newton worked on calculus in 1666 and Leibniz was born 21/6 [since Leipzig was using the Julian calendar which was 10 days apart from our current Gregorian calendar at the time of his birth]
An image showing that a 35 by 35 square can be cut into a 30 by 30 square, two 30 by 5 rectangles, and a 5 by 5 square. The first three pieces can then be rearranged to form a 30 by 40 rectangle, thus showing that 35² = 30 × 40 + 25 = 1225.
The Philippine flag
An anagram animation showing that “Nobel-winning laureate and chemist Maria Sklodowska-Curie” can be rearranged to spell “Unbiased work unlocks niche alarming element; radio awaits!”
Question: If it's midnight in London when it's 7 PM in New York, what time is it in London when it's midnight in New York? Answer from the show: 5 AM Actual answer due to DST: Either 5 AM or 4 AM An example for 4 AM: Start from October 25th 2025, 23:00 UTC and add 5 hours
An animation for the following numerical New Year countdown: (10 + 9 + 8) × (7 × 6 + 5 × (4 + 3) - 2) + 1 = 2026
The Direct misleading Gravity Falls fans & getting their hopes up for an actual revival of the show while simultaneously getting the year the show ended wrong (Gravity Falls actually ended in February 2016)
Long division puzzle where 2025 is being divided by a two-digit divisor to get a quotient with a three-digit integer part and with one digit after the decimal point. Each multiplication step in the procedure had a two-digit result, and each subtraction left a one-digit difference [the last subtraction gave a difference of 0]
Screenshot of satirical headline claiming the White House insisted that Jeffrey Epstein was talking about a different Donald Trump citing the British spoof news website NewsThump
Calculator screenshot confirming that (52 + 63 + 62 + 49 + 60 + 52) + (68 + 66 + 69 + 61 + 64) does indeed add up to 666
The explicit formula for the nth term of the sequence 10, 15, 25, 40, 65, 105, 170, and so on [adding the two previous terms to get the next term] starting at n = 1. The 30th term in this case would be 10891545
A Rather Radical Integral Challenge: Find a closed-form expression for the definite integral from 44 to 46 of ((x-2024/x)²⁰²⁶)^(1/2025) with respect to x
Screenshot of New York Times Crossword looking like a swastika on the first day of Hanukkah 2022
Numerology-inspired satire showing that "FOUNDER OF TRUMP BURGER" = "FACES DEPORTATION ISSUES" = 263 (if you let A = 1, B = 2, C = 3, and so on). It asks whether this is a coincidence, then immediately answers its own question by pointing out that "US CITIZENSHIP UNAFFECTED" = 263 via the same method
A visual solution to the following problem: "What is the length of the hypotenuse of a right angled triangle with legs of length 7 and 24?"
The image describes the following mathematical trick which will always give 666 as a result Step #1: Choose four distinct digits [In the example: 2, 3, 5, and 7 were chosen] Step #2: Form all three-digit numbers possible using three distinct digits from those you picked [There are twenty-four possible three-digit numbers that could be formed and the table shows all of them arranged in a random and unimportant order] Step #3: Divide the sum of the three-digit numbers formed by the sum of the four digits [In the case of the example, the three-digit numbers formed added up to 11,322 which when divided by 17 (from 2 + 3 + 5 + 7) would indeed give 666 as expected]
Joke meme inspired by numerological conspiracy theories showing that "ASTRONOMER CEO" = "CAUGHT WITH AFFAIR" = 161 (if you let A = 1, B = 2, C = 3, and so on). The meme asks whether this is a coincidence, then immediately answers its own question by pointing out that "FAITHFUL TO WIFE" = 161 via the same method
Google's AI Overview attempting to find the factors of 2581. It claims the factors of 2581 are 1, 31, 83, and 2581. While the method it's using is valid, the AI incorrectly states that 31 is the first prime number that divides 2581 because 2581 divided by 31 equals exactly 83. In reality, 2581 is a multiple of an earlier prime number (29) and 2581/31 = 83.2580645...
Artwork by storyboard artist Mike Austin for S3E1 of The Owl House: Thanks To Them that premiered on October 15. The artwork shows a depressed Luz Noceda laying in bed staring at the ceiling while holding her palisman in an egg
Screenshot of a regular phone calculator confirming that (92+85+82+83) + (84+76+78+86) does indeed add up to 666
The integral 2y dy From 0 all the way to 9 Add 12 over 4 Then subtract 1 more You will get the 23rd prime
A screenshot from Matt Parker's Wikipedia article claiming Matt Parker was born on December 22nd 1980 in the very first sentence
British transgender girl Brianna Ghey was murdered on February 11, 2023 & this New York Times article titled In Defense of J.K. Rowling was published not even a week afterwards on February 16, 2023 (J. K. Rowling has gotten under hot fire for transphobia)
An animated mathematical countdown to 2025 using the numbers 10, 9, 8, and so on down to 3, 2, 1 in decreasing order along with mathematical operations to make a mathematical expression equal to the upcoming year
2014 calendar
First three months of the 2025 calendar
The Unit Circle (circle with radius 1) along with labels for the x & y coordinates of all special angles [multiples of 30° & 45° aka π/6 & π/4]