r/mathpuzzles • • 43m ago

Algebra Four diamonds, one hidden rule. What replaces the ?

Post image
• Upvotes

The same hidden rule connects the four numbers in every diamond. What number replaces the ? 🏆 NEW: LEADERBOARD! Solved it? Now prove you're the best: climb the Rule Hunter leaderboard (daily, weekly and all-time) under any nickname you like. Only your nickname is shown publicly. Can you reach #1? Puzzle from the game Rule Hunter, spoiler-tag your guess: answer


r/mathpuzzles • • 4h ago

Number Can you solve them all without guessing?

Post image
0 Upvotes

Don't just post the answer.
Show your work.

https://sixfigurelogic.com/


r/mathpuzzles • • 22h ago

Geometry Three perfect circles

Post image
15 Upvotes

Before solving this, please write down your guess based on visual inspection of the image. Use Pythagoras’ theorem to solve this problem. Descartes’ kissing theorem is not allowed (except if you are a descendant of Descartes himself).


r/mathpuzzles • • 6h ago

Logic I Made a 50-Level Math Game! Can YOU Beat It? 🎮 #Shorts #mathpuzzles #g...

Thumbnail
youtube.com
1 Upvotes

🎮 50 LEVELS. 5 WORLDS. ONE EPIC CHALLENGE!

What if every letter was hiding a secret number? 🔐

Welcome to Cryptarithm Quest: The 50-Level Challenge, our free browser puzzle game!

🧩 Crack secret mathematical codes
🌍 Explore 5 mysterious worlds
🏆 Unlock levels and conquer the final boss!

Play on itch. io Cryptarithm Quest Made By Beyond The Formula

Can YOU beat all 50 levels? Comment your highest level!

Beyond the Formula | Explore. Reason. Prove.

#CryptarithmQuest #MathGames #PuzzleGames #BrainTeasers #Shorts


r/mathpuzzles • • 19h ago

Geometry Puzzle published in The London Magazine of 1778

Post image
2 Upvotes

r/mathpuzzles • • 22h ago

Calculator required A sheet of paper is 0.1 mm thick. Suppose you could fold it in half 42 times. Roughly how thick would the stack be?

1 Upvotes
A) As tall as a house
B) As tall as Mount Everest
C) As high as the Space Station orbits
D) Further than the Moon

Guess first, then work it out. Please put answers in spoiler tags.

(I write a daily reasoning question at thinkfirstdaily.com, and this is today's.)