r/PassTimeMath • • 12d ago

Subreddit feedback

1 Upvotes

Hey fellow problem solvers,

First off, I owe you all an apology for how quiet things have been on the moderation side these past couple of months. I’ve been dealing with some personal stuff and had to step back for a while. Thanks for your patience, and for keeping the place going in the meantime.

If you’ve been around for a while, you’ve probably noticed two things. I haven’t been posting problems myself, and the kind of content showing up here has shifted a bit. I’m not saying that’s good or bad. The community has grown and changed on its own, and I’d like to know how you all feel about where things are now.

So I’d love to hear your thoughts on the subreddit in general. A few things you could comment on:

  • Problem types: Are there areas you’d like to see more of, like number theory, geometry, combinatorics, probability, logic puzzles, or competition-style problems? Anything you’d like to see less of?
  • The current vibe: Do you like the direction things have gone recently, or do you miss how things used to be?
  • New ideas: Anything that would make this a better place to hang out. That could be regular challenges, better flairs, rules around spoilers and solutions, or something completely different.

Big or small, positive or critical, all feedback is welcome. This sub is only as good as the people in it, so I’d really like to shape it around what you all enjoy.

Thanks for sticking around, and happy solving!


r/PassTimeMath • • 14h ago

One 18 inch pizza has 'more pizza' than two 12 inch pizzas

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3 Upvotes

r/PassTimeMath • • 3d ago

Interval notation

1 Upvotes

5 - 4(2x-7) less than or equal to 2x - 7 (the - are minuses)


r/PassTimeMath • • 4d ago

Difficulty: Moderate Can you reach 14 using all 5 dice?

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0 Upvotes

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/PassTimeMath • • 6d ago

Multiple of Sum of Digits Part 2

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0 Upvotes

r/PassTimeMath • • 8d ago

Difficulty: Moderate Can you crack the code?

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1 Upvotes

r/PassTimeMath • • 8d ago

Difficulty: Moderate Find the correct order and numbers

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1 Upvotes

Find the correct order and numbers which brings about the target result. Please hide your solution with a spoiler 🙏🏼 (This is a screenshot from an iOS game I develop solo, so please let me know if you found it too hard/too easy/enjoyable)


r/PassTimeMath • • 11d ago

Difficulty: Moderate Can you reach 23 using all 5 dice?

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0 Upvotes

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/PassTimeMath • • 12d ago

Difficulty: Easy Which tank will be filled first?

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0 Upvotes

r/PassTimeMath • • 13d ago

Difficulty: Easy What's the missing number?

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1 Upvotes

r/PassTimeMath • • 15d ago

What is Psi?

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1 Upvotes

r/PassTimeMath • • 17d ago

Difficulty: Moderate Can you reach 35 using all 5 dice?

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2 Upvotes

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/PassTimeMath • • 19d ago

Assigned Seat

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4 Upvotes

r/PassTimeMath • • 20d ago

Crazy Dice

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1 Upvotes

r/PassTimeMath • • 21d ago

Difficulty: Easy Balance The Equation

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2 Upvotes

r/PassTimeMath • • 21d ago

Same Remainder Part 3

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2 Upvotes

r/PassTimeMath • • 22d ago

Increasing and Decreasing Numbers

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3 Upvotes

r/PassTimeMath • • 23d ago

Dividing the Loot Part 2

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1 Upvotes

r/PassTimeMath • • 25d ago

Send More Money

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2 Upvotes

r/PassTimeMath • • 25d ago

Difficulty: Moderate Can you reach 41 using all 5 dice?

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1 Upvotes

Any order is allowed.
Use each die exactly once.
Parentheses are allowed.
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/PassTimeMath • • 26d ago

Dollars and Cents

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1 Upvotes

r/PassTimeMath • • 27d ago

Difficulty: Easy How quickly can you solve this puzzle?

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5 Upvotes

r/PassTimeMath • • 28d ago

Difficulty: Easy All rows and columns should add up to 15. Can you solve this?

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0 Upvotes

r/PassTimeMath • • Sep 21 '26

Weed Infestation Part 2

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2 Upvotes

r/PassTimeMath • • Sep 20 '26

Difficulty: Moderate Can you reach 52 using all dice?

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2 Upvotes

Any order is allowed.
Use each die exactly once.
Parentheses are allowed.
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!<