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Contests & Programs AMC and other contests, summer programs, etc.
AMC and other contests, summer programs, etc.
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Contests & Programs AMC and other contests, summer programs, etc.
AMC and other contests, summer programs, etc.
3 M G
BBookmark  VNew Topic kLocked
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First Poster
Last Poster
k I need your help
Mr_adjective   51
N an hour ago by JuliaY2024
how do you use aops?
51 replies
Mr_adjective
Jul 24, 2025
JuliaY2024
an hour ago
Private Forum for Geometry Study
fossasor   248
N an hour ago by wipid98
Hi all,

I've recently been trying to improve my skill at competition math, but I consistently struggle with geometry. Since doing math is more fun and motivating with others, I've created the GeoPrepClub. This is a private forum to increase geometry skill and help others increase theirs: we'll have problems, marathons, and much more. This is similar to forums such as "AMC8 Prep Buddies" by PatTheKing, but is focused exclusively on this subject. We welcome all skill levels and hope those with greater mathematical knowledge can assist those lacking in it.

If this sounds interesting to you, sing up below and I'll let you know once I've added you. Although the forum may not have much now, that's because I've only just released it, and I hope once I build a community, It will be a very useful and motivating space for those interested in improving their geometry. The link is
here.

I look forward to seeing you all in the forum!
248 replies
fossasor
Jun 10, 2025
wipid98
an hour ago
no answer problem
Mathichian   28
N 2 hours ago by AllenHou
if you chose a random answer for this problem, what is the probability that you are correct?
A)25% B)50% C)60% D)25%
28 replies
Mathichian
Jul 22, 2025
AllenHou
2 hours ago
Funniest bogus solution you have ever seen?
an912   36
N 2 hours ago by mymelody1234
Here is the funniest I have seen, took me a solid minute to figure out.

Let x=y.
$x^2=xy$
$x^2-y^2=xy-y^2$
$(x+y)*(x-y)=y(x-y)$
$x+y=y$
$y+y=y$
$2y=y$
$2=1?$


Share your ones if you have any. Try to find the faults in the bogus solution, I find it makes it easier to check your work.
36 replies
an912
Jun 10, 2025
mymelody1234
2 hours ago
Factorial fraction
Silverfalcon   50
N 2 hours ago by AlexHome
$\frac{(3!)!}{3!} =$

$\text{(A)}\ 1 \qquad \text{(B)}\ 2 \qquad \text{(C)}\ 6\qquad \text{(D)}\ 40\qquad \text{(E)}\ 120$
50 replies
Silverfalcon
Nov 21, 2005
AlexHome
2 hours ago
Bogus Proof Marathon
pifinity   7795
N 3 hours ago by idk12345678
Hi!
I'd like to introduce the Bogus Proof Marathon.

In this marathon, simply post a bogus proof that is middle-school level and the next person will find the error. You don't have to post the real solution :P

Use classic Marathon format:
[hide=P#]a1b2c3[/hide]
[hide=S#]a1b2c3[/hide]


Example posts:

P(x)
-----
S(x)
P(x+1)
-----
Let's go!! Just don't make it too hard!
7795 replies
pifinity
Mar 12, 2018
idk12345678
3 hours ago
9 AlphaStar vs Aops vs AwesomeMath
booking   22
N Today at 5:21 AM by FoeverResentful
I have heard a lot about AlphaStar and AwesomeMath, and of course aops(otherwise you wouldn't be here). Which one do you think is better.
If you have anything to say about these programs, please post it down below. Thank you!
22 replies
booking
Jul 12, 2025
FoeverResentful
Today at 5:21 AM
Mathcounts Problem
Jdskdkdkd   4
N Today at 2:42 AM by Jdskdkdkd
A penny is tossed 3 times and a nickel is tossed 2 times. What is the probability that more heads are tossed using the penny than using the nickel?

*Please provide a detailed explanation, this is kind of confusing :( *
4 replies
Jdskdkdkd
Today at 1:46 AM
Jdskdkdkd
Today at 2:42 AM
9 MathDash
booking   34
N Today at 1:14 AM by aidan0626
If you pay for MathDash, specifically lessons, could you please give feedback below?
34 replies
booking
Jul 6, 2025
aidan0626
Today at 1:14 AM
The 24 Game Only Basic Operations
maxamc   66
N Today at 12:12 AM by Ynsg
Use the numbers $1,2,3,4,5,6,7,8,9,10$ (you must use all numbers) and the operations $+,-,\cdot,\div$ ONLY to create all positive integers in order. I will repeat 1 more time: ONLY these 4 operations (no concatenation or anything like totient etc.)

This is a real challenge compared to all postfarming attempts over the years.

Solutions
66 replies
maxamc
Jul 25, 2025
Ynsg
Today at 12:12 AM
a