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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.
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k a March Highlights and 2025 AoPS Online Class Information
jlacosta   0
Mar 2, 2025
March is the month for State MATHCOUNTS competitions! Kudos to everyone who participated in their local chapter competitions and best of luck to all going to State! Join us on March 11th for a Math Jam devoted to our favorite Chapter competition problems! Are you interested in training for MATHCOUNTS? Be sure to check out our AMC 8/MATHCOUNTS Basics and Advanced courses.

Are you ready to level up with Olympiad training? Registration is open with early bird pricing available for our WOOT programs: MathWOOT (Levels 1 and 2), CodeWOOT, PhysicsWOOT, and ChemWOOT. What is WOOT? WOOT stands for Worldwide Online Olympiad Training and is a 7-month high school math Olympiad preparation and testing program that brings together many of the best students from around the world to learn Olympiad problem solving skills. Classes begin in September!

Do you have plans this summer? There are so many options to fit your schedule and goals whether attending a summer camp or taking online classes, it can be a great break from the routine of the school year. Check out our summer courses at AoPS Online, or if you want a math or language arts class that doesn’t have homework, but is an enriching summer experience, our AoPS Virtual Campus summer camps may be just the ticket! We are expanding our locations for our AoPS Academies across the country with 15 locations so far and new campuses opening in Saratoga CA, Johns Creek GA, and the Upper West Side NY. Check out this page for summer camp information.

Be sure to mark your calendars for the following events:
[list][*]March 5th (Wednesday), 4:30pm PT/7:30pm ET, HCSSiM Math Jam 2025. Amber Verser, Assistant Director of the Hampshire College Summer Studies in Mathematics, will host an information session about HCSSiM, a summer program for high school students.
[*]March 6th (Thursday), 4:00pm PT/7:00pm ET, Free Webinar on Math Competitions from elementary through high school. Join us for an enlightening session that demystifies the world of math competitions and helps you make informed decisions about your contest journey.
[*]March 11th (Tuesday), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS Chapter Discussion MATH JAM. AoPS instructors will discuss some of their favorite problems from the MATHCOUNTS Chapter Competition. All are welcome!
[*]March 13th (Thursday), 4:00pm PT/7:00pm ET, Free Webinar about Summer Camps at the Virtual Campus. Transform your summer into an unforgettable learning adventure! From elementary through high school, we offer dynamic summer camps featuring topics in mathematics, language arts, and competition preparation - all designed to fit your schedule and ignite your passion for learning.[/list]
Our full course list for upcoming classes is below:
All classes run 7:30pm-8:45pm ET/4:30pm - 5:45pm PT unless otherwise noted.

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0 replies
jlacosta
Mar 2, 2025
0 replies
2025 ROSS Program
scls140511   12
N 3 minutes ago by Alex-131
Since the application has ended, are we now free to discuss the problems and stats? How do you think this year's problems are?
12 replies
scls140511
Today at 2:36 AM
Alex-131
3 minutes ago
is this really supposed to be #13???
hgmium   2
N 3 minutes ago by Rice_Farmer
https://artofproblemsolving.com/wiki/index.php/2022_AMC_10A_Problems/Problem_13

I managed to do all the other geo problems for that year besides this one
misplaced?
2 replies
hgmium
14 minutes ago
Rice_Farmer
3 minutes ago
MathPath 2025 form.
BraveCobra22aops   0
30 minutes ago
I created a form for people going to MathPath 2025: https://artofproblemsolving.com/community/c136h3528968_mathpath_2025.
0 replies
BraveCobra22aops
30 minutes ago
0 replies
AMC- IMO preparation
asyaela.   9
N an hour ago by Schintalpati
I'm a ninth grader, and I recently attempted the AMC 12, getting 18 questions correct and leaving 7 empty. I started working on Olympiad math in November and currently dedicate about two hours per day to preparation. I'm feeling a bit demotivated, but if it's possible for me to reach IMO level, I'd be willing to put in more time. How realistic is it for me to get there, and how much study would it typically take?
9 replies
+1 w
asyaela.
4 hours ago
Schintalpati
an hour ago
No more topics!
OTIS Mock AIME 2025 airs Dec 19th
v_Enhance   38
N Today at 1:32 AM by smileapple
Source: https://web.evanchen.cc/mockaime.html
Satisfactory. Keep cooking.
IMAGE

Problems are posted at https://web.evanchen.cc/mockaime.html#current now!

Like last year, we're running the OTIS Mock AIME 2025 again, except this time there will actually be both a I and a II because we had enough problems to pull it off. However, the two versions will feel quite different from each other:

[list]
[*] The OTIS Mock AIME I is going to be tough. It will definitely be harder than the actual AIME, by perhaps 2 to 4 problems. But more tangibly, it will also have significant artistic license. Problems will freely assume IMO-style background throughout the test, and intentionally stretch the boundary of what constitutes an “AIME problem”.
[*] The OTIS Mock AIME II is meant to be more practically useful. It will adhere more closely to the difficulty and style of the real AIME. There will inevitably still be some more IMO-flavored problems, but they’ll appear later in the ordering.
[/list]
Like last time, all 30 problems are set by current and past OTIS students.

Details are written out at https://web.evanchen.cc/mockaime.html, but to highlight important info:
[list]
[*] Free, obviously. Anyone can participate.
[*]Both tests will release sometime Dec 19th. You can do either/both.
[*]If you'd like to submit for scoring, you should do so by January 20th at 23:59 Pacific time (same deadline for both). Please hold off on public spoilers before then.
[*]Solutions, statistics, and maybe some high scores will be published shortly after that.
[/list]
Feel free to post questions, hype comments, etc. in this thread.
38 replies
v_Enhance
Dec 6, 2024
smileapple
Today at 1:32 AM
OTIS Mock AIME 2025 airs Dec 19th
G H J
G H BBookmark kLocked kLocked NReply
Source: https://web.evanchen.cc/mockaime.html
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v_Enhance
6857 posts
#1 • 72 Y
Y by deduck, clarkculus, Alex-131, ld414think, CyclicISLscelesTrapezoid, Leo.Euler, P_Groudon, dolphinday, anantmudgal09, bjump, Shreyasharma, megahertz13, happypi31415, crazyeyemoody907, amaops1123, exp-ipi-1, FIREDRAGONMATH16, eg4334, mahaler, Marcus_Zhang, Jack_w, youlost_thegame_1434, Danielzh, Andyluo, vincentwant, zhenghua, megarnie, ryanbear, Mathdreams, evt917, mathlove_13520, gladIasked, Sedro, gracemoon124, HamstPan38825, Awesomeness_in_a_bun, NaturalSelection, aidan0626, J55406, Rice_Farmer, aliz, EpicBird08, bluecornbot, studymoremath, Grolarbear, DS768, ESAOPS, Maximilian113, abeot, giratina3, OronSH, KnowingAnt, alan9535, peppapig_, puffypundo, David_He, NoSignOfTheta, joshualiu315, trk08, chloekyan, vrondoS, pingpongmerrily, fuzimiao2013, MathLoverYeah, discretemathcombinatorics, IMUKAT, channing421, bachkieu, chiaroscuro, zhoujef000, dragon888, NicoN9
Satisfactory. Keep cooking.
https://web.evanchen.cc/static/otter-cooking.png

Problems are posted at https://web.evanchen.cc/mockaime.html#current now!

Like last year, we're running the OTIS Mock AIME 2025 again, except this time there will actually be both a I and a II because we had enough problems to pull it off. However, the two versions will feel quite different from each other:
  • The OTIS Mock AIME I is going to be tough. It will definitely be harder than the actual AIME, by perhaps 2 to 4 problems. But more tangibly, it will also have significant artistic license. Problems will freely assume IMO-style background throughout the test, and intentionally stretch the boundary of what constitutes an “AIME problem”.
  • The OTIS Mock AIME II is meant to be more practically useful. It will adhere more closely to the difficulty and style of the real AIME. There will inevitably still be some more IMO-flavored problems, but they’ll appear later in the ordering.
Like last time, all 30 problems are set by current and past OTIS students.

Details are written out at https://web.evanchen.cc/mockaime.html, but to highlight important info:
  • Free, obviously. Anyone can participate.
  • Both tests will release sometime Dec 19th. You can do either/both.
  • If you'd like to submit for scoring, you should do so by January 20th at 23:59 Pacific time (same deadline for both). Please hold off on public spoilers before then.
  • Solutions, statistics, and maybe some high scores will be published shortly after that.
Feel free to post questions, hype comments, etc. in this thread.
This post has been edited 1 time. Last edited by v_Enhance, Dec 19, 2024, 6:43 PM
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deduck
164 posts
#2
Y by
Lets go otis!!!
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bachkieu
113 posts
#3
Y by
oh right i should submit my units that i never wrote up :oops:

but go otis!!!
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blueprimes
300 posts
#4
Y by
Yay another OTIS Mock AIME!

IMO-flavored math problems though... I might be cooked :blush:
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Geometry285
902 posts
#5 • 2 Y
Y by Leo.Euler, Arcticturn
Geometry285 wrote:
long

Perhaps this is a bit of a stretch, but for next year with the excess problems you could maybe even create an "OTIS I" and "OTIS II" mock AIME like CIME did. I would suppose that given the massively varied problem quality in recent AIMEs that this would provide the most "accurate" experience for competitors prior to the real AIME (e.g. adding one problem a test as obligatory bash, oly problems, etc.)

Nonetheless still excited!

It looks like my wish may be coming true!! Super excited for OTIS 2025!
This post has been edited 1 time. Last edited by Geometry285, Dec 6, 2024, 7:41 PM
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P_Groudon
864 posts
#6
Y by
I like the difference in the two tests.

First is meant to appeal to those in olympiad like the hard CIMEs, while the second is meant to not discourage people who are new to AIME.
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megahertz13
3168 posts
#7
Y by
Can confirm high quality problems :D, yeah AIME I is very olympiad-focused. The raw "difficulty" of AIME II is actually very similar to a harder AIME like 2023, but demands more knowledge towards the end.
This post has been edited 2 times. Last edited by megahertz13, Dec 6, 2024, 8:26 PM
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happypi31415
734 posts
#8
Y by
Next year OTIS III :flushed:
high quality guaranteed though :D
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Magnetoninja
266 posts
#10
Y by
Where are the past ones?
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InftyByond
195 posts
#11
Y by
imo problems in AIME? I don't know how to read sols ohh very scary
anyways hype
This post has been edited 1 time. Last edited by InftyByond, Dec 7, 2024, 12:20 AM
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megahertz13
3168 posts
#12
Y by
Magnetoninja wrote:
Where are the past ones?

https://artofproblemsolving.com/community/c5h3220452p29466910
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Tetra_scheme
92 posts
#13
Y by
looking forward to it
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aidan0626
1722 posts
#14
Y by
personal feed
hype
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mhgelgi
566 posts
#15
Y by
consider me in!
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KevinChen_Yay
185 posts
#16
Y by
ORZ! i def join
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SirAppel
850 posts
#17
Y by
airs today :)
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KevinChen_Yay
185 posts
#18
Y by
yessir! admit
This post has been edited 1 time. Last edited by KevinChen_Yay, Feb 5, 2025, 10:05 PM
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v_Enhance
6857 posts
#19 • 18 Y
Y by dolphinday, CyclicISLscelesTrapezoid, samrocksnature, OronSH, resources, sami1618, Cattus1221, bachkieu, Leo.Euler, aidan0626, StressedPineapple, cosinesine, alan9535, megahertz13, Danielzh, Sedro, PaperMath, Shadow6885
We're out now! https://web.evanchen.cc/mockaime.html#current
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chenghaohu
68 posts
#24 • 1 Y
Y by nsking_1209
One weird question: When you submit, do you include leading zeroes or no? I do not want my answers to be counted wrong because it is 9 instead of 009.
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sadas123
1010 posts
#25
Y by
I think that I got a 4 on the AIME I I hope, I am just in middle school.
This post has been edited 1 time. Last edited by sadas123, Dec 27, 2024, 12:47 AM
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chenghaohu
68 posts
#26
Y by
Can someone please answer my question? For those of you that already submitted, did you include or exclude leading zeros in your answer(s)?
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Tetra_scheme
92 posts
#28
Y by
chenghaohu wrote:
Can someone please answer my question? For those of you that already submitted, did you include or exclude leading zeros in your answer(s)?

the form itself forces a 3 digit answer so you have to have leading zeros
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chenghaohu
68 posts
#29
Y by
Oh I didn't realize there's an algorithm like that. Thanks!!!
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EaZ_Shadow
1096 posts
#31 • 4 Y
Y by 1217662, 1218865, 1220118, Ad112358
if you submitted already, when will you get your answers
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alan9535
1377 posts
#36
Y by
EaZ_Shadow wrote:
if you submitted already, when will you get your answers

click view score on the form
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happypi31415
734 posts
#38
Y by
can there be a leaderboard?
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MathCosine
122 posts
#39
Y by
happypi31415 wrote:
can there be a leaderboard?

Can there also be a leaderboard for unofficial parcipitants(like we took a lot of time, but still got answers?)
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P_Groudon
864 posts
#43
Y by
Contest submission window is over. I thought both were very nice tests overall.
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BS2012
889 posts
#44 • 1 Y
Y by Lhaj3
Personally, both tests seemed to have a streak of easy problems at the beginning until the difficulty "jumped" a lot, i feel for the AIME I it occurred between problems 10 (literally just constructive counting) and 11 (feels like one of those impossible geo p14s, tried for >30 minutes and got nowhere), and for the AIME II between problems 12 (simple trig) and 13 (how).
This post has been edited 1 time. Last edited by BS2012, Jan 21, 2025, 5:11 PM
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exp-ipi-1
1071 posts
#45
Y by
When are the solutions gonna be posted?
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BR1F1SZ
511 posts
#46
Y by
exp-ipi-1 wrote:
When are the solutions gonna be posted?

Bump!
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dolphinday
1310 posts
#47 • 1 Y
Y by BR1F1SZ
Later today, apparently
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megahertz13
3168 posts
#48 • 1 Y
Y by BR1F1SZ
BR1F1SZ wrote:
exp-ipi-1 wrote:
When are the solutions gonna be posted?

Bump!
Attachments:
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P_Groudon
864 posts
#49
Y by
BS2012 wrote:
Personally, both tests seemed to have a streak of easy problems at the beginning until the difficulty "jumped" a lot, i feel for the AIME I it occurred between problems 10 (literally just constructive counting) and 11 (feels like one of those impossible geo p14s, tried for >30 minutes and got nowhere), and for the AIME II between problems 12 (simple trig) and 13 (how).

I'd have to agree with this, but I got blocked earlier on both tests. Ended up with

AIME I: 10111 01110 00000 [7]
AIME II: 11111 11101 00010 [10]
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Shreyasharma
666 posts
#50
Y by
I had the same experience; earlier half was much easier on the I and the II, and then around 11 and 12 respectively there was an insane jump in difficulty. Still really enjoyed the tests :coolspeak:
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BS2012
889 posts
#51
Y by
Somehow I got double 9 because of 3 sillies on the II and only 1 on the I
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v_Enhance
6857 posts
#52 • 3 Y
Y by aidan0626, PaperMath, Shadow6885
Solutions and results are now posted at https://web.evanchen.cc/mockaime.html.
Congratulations to the top scorers:

AIME I:
:winner_first: [14 points] Yonghao Jin
:winner_second: [13 points] Michael Zhao, person1324.990, tenth
:winner_third: [12 points] Advaith Tumiki, Eric Dai, lethan3, sami

AIME II:
:winner_first: [13 points] channing421
:winner_second: [12 points] Dylan Frake, Jacob Khohayting, Lifewrath, Lilypad, Nathan Liu, person1324.990, Shihan Kanungo, Vihaan Gupta
:winner_third: [11 points] Andrew, Aryan Raj, bryant, Chenghao Hu, GRAPESUPREMACY, Hansen Shieh, Hyun-Jin Kim, Jefferson Zhou, Joey Zheng, Khio, Kyle Wu, Lucas Pavlov, Mingyue Yang, Oz, Scrge, sus, suspiciouscow, Sylvia Lee, tetra_scheme, TimmysG, YourJFForever

And all the problems are posted in this forum at https://artofproblemsolving.com/community/c4180954.

Hope you had fun, see you all next year!
This post has been edited 1 time. Last edited by v_Enhance, Feb 3, 2025, 4:28 PM
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Scilyse
385 posts
#53
Y by
v_Enhance wrote:
Solutions and results are now posted at https://web.evanchen.cc/mockaime.html.
Congratulations to the top scorers:

AIME I:
:winner_first: [14 points] Yonghao Jin
:winner_second: [13 points] Michael Zhao, person1324.990, tenth
:winner_third: [12 points] Advaith Tumiki, Eric Dai, lethan3, sami

AIME II:
:winner_first: [13 points] channing421
:winner_second: [12 points] Dylan Frake, Jacob Khohayting, Lifewrath, Lilypad, Nathan Liu, person1324.990, Shihan Kanungo, Vihaan Gupta
:winner_third: [11 points] Andrew, Aryan Raj, bryant, Chenghao Hu, GRAPESUPREMACY, Hansen Shieh, Hyun-Jin Kim, Jefferson Zhou, Joey Zheng, Khio, Kyle Wu, Lucas Pavlov, Mingyue Yang, Oz, Scrge, sus, suspiciouscow, Sylvia Lee, tetra_scheme, TimmysG, YourJFForever

And all the problems are posted in this forum at https://artofproblemsolving.com/community/c41809540.

Hope you had fun, see you all next year!

you accidentally appended a zero in the collection url
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can't believe there isn't a diamond somewhere in this thread
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