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Topic
First Poster
Last Poster
SL Difficulty Level
MajesticCheese 0
Is there a rough difficulty comparison between IMO shortlist questions and USAMO questions? For example,
SL 1, 2, 3 -> USAMO P1
SL 4, 5, 6 -> USAMO P2
SL 7, 8, 9 -> USAMO P3
(This is just my guess; probably not correct)
Also feel free to compare it with other competitions(like the jmo) as well! :-D
SL 1, 2, 3 -> USAMO P1
SL 4, 5, 6 -> USAMO P2
SL 7, 8, 9 -> USAMO P3
(This is just my guess; probably not correct)
Also feel free to compare it with other competitions(like the jmo) as well! :-D
0 replies
VOLUNTEERING OPPORTUNITY OPEN TO HIGH/MIDDLE SCHOOLERS
im_space_cadet 11
N
by Lhaj3
Hi everyone!
Do you specialize in contest math? Do you have a passion for teaching? Do you want to help leverage those college apps? Well, I have something for all of you.
I am im_space_cadet, and during the fall of last year, I opened my non-profit DeltaMathPrep which teaches students preparing for contest math the problem-solving skills they need in order to succeed at these competitions. Currently, we are very much understaffed and would greatly appreciate the help of more tutors on our platform.
Each week on Saturday and Wednesday, we meet once for each competition: Wednesday for AMC 8 and Saturday for AMC 10 and we go over a past year paper for the entire class. On both of these days, we meet at 9PM EST in the night.
This is a great opportunity for anyone who is looking to have a solid activity to add to their college resumes that requires low effort from tutors and is very flexible with regards to time.
This is the link to our non-profit for anyone who would like to view our initiative:
https://www.deltamathprep.org/
If you are interested in this opportunity, please send me a DM on AoPS or respond to this post expressing your interest. I look forward to having you all on the team!
Thanks,
im_space_cadet
Do you specialize in contest math? Do you have a passion for teaching? Do you want to help leverage those college apps? Well, I have something for all of you.
I am im_space_cadet, and during the fall of last year, I opened my non-profit DeltaMathPrep which teaches students preparing for contest math the problem-solving skills they need in order to succeed at these competitions. Currently, we are very much understaffed and would greatly appreciate the help of more tutors on our platform.
Each week on Saturday and Wednesday, we meet once for each competition: Wednesday for AMC 8 and Saturday for AMC 10 and we go over a past year paper for the entire class. On both of these days, we meet at 9PM EST in the night.
This is a great opportunity for anyone who is looking to have a solid activity to add to their college resumes that requires low effort from tutors and is very flexible with regards to time.
This is the link to our non-profit for anyone who would like to view our initiative:
https://www.deltamathprep.org/
If you are interested in this opportunity, please send me a DM on AoPS or respond to this post expressing your interest. I look forward to having you all on the team!
Thanks,
im_space_cadet
11 replies
MAA ran out of ideas
fidgetboss_4000 45
N
by Euler...
Source: 10A #16/12A #16
In the following list of numbers, the integer 
appears times in the list for 
What is the median of the numbers in this list?
appears times in the list for 
What is the median of the numbers in this list?
45 replies
mohs of each oly
cowstalker 18
N
by BS2012
what are the general concencus for the mohs of each of the problems on usajmo and usamo
18 replies
Math Camps
jack_ma 12
N
by NoSignOfTheta
What are some math camps (residential and online) for high schoolers?
12 replies
1 viewing
How many people get waitlisted st promys?
dragoon 16
N
by sadas123
Asking for a friend here
16 replies
-2025 answer extract??
bobthegod78 20
N
by BS2012
Source: 2025 AIME I P5
There are
eight-digit positive integers that use each of the digits 1, 2, 3, 4, 5, 6, 7, 8 exactly once. Let N be the number of these integers that are divisible by 
. Find the difference between 
and 2025.
20 replies
Inequality with a^2+b^2+c^2+abc=4
cn2_71828182846 71
N
by Novmath
Source: USAMO 2001 #3
Let 
and satisfy ![\[ a^2+b^2+c^2 +abc = 4 . \]](//latex.artofproblemsolving.com/d/3/a/d3ac01295b077425b5eaae556faa4cd678bce32a.png)
Show that ![\[ 0 \le ab + bc + ca - abc \leq 2. \]](//latex.artofproblemsolving.com/2/0/9/209b3fcb56c01c335bbcb8d5fb781e28e49a0798.png)
and satisfy ![\[ a^2+b^2+c^2 +abc = 4 . \]](http://latex.artofproblemsolving.com/d/3/a/d3ac01295b077425b5eaae556faa4cd678bce32a.png)
Show that ![\[ 0 \le ab + bc + ca - abc \leq 2. \]](http://latex.artofproblemsolving.com/2/0/9/209b3fcb56c01c335bbcb8d5fb781e28e49a0798.png)
71 replies
AIME I 2025 Problem 6
PaperMath 38
N
by NicoN9
Source: 2025 AIME 1 #6
An isosceles trapezoid has an inscribed circle tangent to each of its four sides. The radius of the circle is 
, and the area of the trapezoid is 
. Let the parallel sides of the trapezoid have lengths 
and 
, with 
. Find 
, and the area of the trapezoid is 
. Let the parallel sides of the trapezoid have lengths 
and 
, with 
. Find 
38 replies
