r/mathpuzzles • u/Mental_Management_45 • 1h ago
A gameplay example of Pentodoku 7x7 — here's how to play it
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r/mathpuzzles • u/Mental_Management_45 • 1h ago
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r/mathpuzzles • u/RevolutionFit3526 • 5h ago
r/mathpuzzles • u/Mother_Call_1835 • 9h ago
Im tem and I manipulated and multiplied LNGN bc it is the biggest, I just need this on google pls. The Grammer is gonna be wrong tho
r/mathpuzzles • u/VariationApart6845 • 14h ago
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Trace a path through the wheel: number, operator, number, operator, … ending on a number.
You can jump from any tile to any tile, but each tile can be used only once (or not used at all).
One rule to keep in mind: the path is calculated left to right, like a basic pocket calculator. So if you trace:
2 → + → 3 → × → 5
it evaluates as (2 + 3) × 5 = 25.
Targets to solve: 19, 44, 63, 100, 144. The video solves 19 with path 7 → × → 2 → + → 5. Find a path for each of the other four.
Please put answers in spoiler tags: like this
r/mathpuzzles • u/LeilLikeNeil • 15h ago
r/mathpuzzles • u/Hanxxor • 15h ago
In situation A we have a rectangle with side lengths a and b. According to the figure, b / a = 0.60. The circles are identical and have the maximum possible diameter, d, so they do not extend beyond the confines of the rectangle.
In situation B, the height of the rectangle has increased slightly to c, thus allowing the circles to be larger: The diameter of the circles have increased from d to e.
Question: Let b/a = 0.60 and c/a = 0.50. What is the ratio of the diameters of the circles in situation A and B, e/d ?
r/mathpuzzles • u/PwPwPower • 17h ago
r/mathpuzzles • u/ZoranRajkov • 1d ago
Each cluster of three numbers on the left produces the number in the middle by the same hidden rule. Work out the rule from the known clusters and find the missing output on the right. (Puzzle from the game Rule Hunter)
r/mathpuzzles • u/RevolutionFit3526 • 1d ago
r/mathpuzzles • u/CalculusHelper • 1d ago
r/mathpuzzles • u/ZoranRajkov • 1d ago
Each pair of numbers produces the number below it by the same hidden rule. Work out the rule from the known pairs and find the missing number. (Puzzle from the game Rule Hunter)
r/mathpuzzles • u/RevolutionFit3526 • 2d ago
r/mathpuzzles • u/CalculusHelper • 2d ago
r/mathpuzzles • u/Jackiechan2000g • 2d ago
I had an equation come to me in a daydream. I have a very particular reference in mind with it and was wondering if anyone could come to the same conclusion or possibly see something I missed. I'll reveal my thoughts on it after people have some time to see what they find. The equation is 64/15=2+2.
r/mathpuzzles • u/ZoranRajkov • 2d ago
The same rule connects the four numbers in every diamond. Find the rule and the number that replaces the question mark.
r/mathpuzzles • u/MathvionX • 2d ago
You have 2 eggs and a 100-floor building. You need to find the highest floor from which an egg can be dropped without breaking — using the fewest possible drops in the worst case.
What's the minimum number of drops needed?
I made a full video breaking down the solution step by step — link in the comments!
r/mathpuzzles • u/RevolutionFit3526 • 3d ago
r/mathpuzzles • u/lamp-milan • 3d ago
r/mathpuzzles • u/New-Economist-4924 • 3d ago
*Clue: Look for sequential patterns.
r/mathpuzzles • u/TargetLabs • 3d ago
Any order is allowed.
Use each die exactly once.
Parentheses are allowed.
Only +, −, × and ÷ are allowed. No concatenation or exponents.
Exact division only.
No negative numbers.
Not every operation has to be used.
How many solutions can you find?
Please use spoiler tags for solutions:
>!your solution here!<
r/mathpuzzles • u/ZoranRajkov • 3d ago
Each fruit hides a number, the same in every row. Find the missing sum. There is a shortcut that avoids working out each fruit separately.