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k a April Highlights and 2025 AoPS Online Class Information
jlacosta   0
Apr 2, 2025
Spring is in full swing and summer is right around the corner, what are your plans? At AoPS Online our schedule has new classes starting now through July, so be sure to keep your skills sharp and be prepared for the Fall school year! Check out the schedule of upcoming classes below.

WOOT early bird pricing is in effect, don’t miss out! If you took MathWOOT Level 2 last year, no worries, it is all new problems this year! Our Worldwide Online Olympiad Training program is for high school level competitors. AoPS designed these courses to help our top students get the deep focus they need to succeed in their specific competition goals. Check out the details at this link for all our WOOT programs in math, computer science, chemistry, and physics.

Looking for summer camps in math and language arts? Be sure to check out the video-based summer camps offered at the Virtual Campus that are 2- to 4-weeks in duration. There are middle and high school competition math camps as well as Math Beasts camps that review key topics coupled with fun explorations covering areas such as graph theory (Math Beasts Camp 6), cryptography (Math Beasts Camp 7-8), and topology (Math Beasts Camp 8-9)!

Be sure to mark your calendars for the following events:
[list][*]April 3rd (Webinar), 4pm PT/7:00pm ET, Learning with AoPS: Perspectives from a Parent, Math Camp Instructor, and University Professor
[*]April 8th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS State Discussion
April 9th (Webinar), 4:00pm PT/7:00pm ET, Learn about Video-based Summer Camps at the Virtual Campus
[*]April 10th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MathILy and MathILy-Er Math Jam: Multibackwards Numbers
[*]April 22nd (Webinar), 4:00pm PT/7:00pm ET, Competitive Programming at AoPS (USACO).[/list]
Our full course list for upcoming classes is below:
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0 replies
jlacosta
Apr 2, 2025
0 replies
1234th Post!
PikaPika999   138
N 3 hours ago by martianrunner
I hit my 1234th post! (I think I missed it, I'm kinda late, :oops_sign:)

But here's a puzzle for you all! Try to create the numbers 1 through 25 using the numbers 1, 2, 3, and 4! You are only allowed to use addition, subtraction, multiplication, division, and parenthesis. If you're post #1, try to make 1. If you're post #2, try to make 2. If you're post #3, try to make 3, and so on. If you're a post after 25, then I guess you can try to make numbers greater than 25 but you can use factorials, square roots, and that stuff. Have fun!

1: $(4-3)\cdot(2-1)$
138 replies
PikaPika999
Yesterday at 8:54 PM
martianrunner
3 hours ago
Website to learn math
hawa   39
N 3 hours ago by xHypotenuse
Hi, I'm kinda curious what website do yall use to learn math, like i dont find any website thats fun to learn math
39 replies
hawa
Apr 9, 2025
xHypotenuse
3 hours ago
bracelets
pythagorazz   5
N 4 hours ago by That_One_Genius.
Kat designs circular bead bracelets for kids. Each bracelet has 5 beads, all of which are either yellow or green. If beads of the same color are identical, how many distinct bracelets could Kat make?
5 replies
pythagorazz
Apr 14, 2025
That_One_Genius.
4 hours ago
2025 MATHCOUNTS State Hub
SirAppel   589
N Today at 1:40 AM by CXP
Previous Years' "Hubs": (2022) (2023) (2024)Please Read

Now that it's April and we're allowed to discuss ...
[list=disc]
[*] CA: 43 (45 44 43 43 43 42 42 41 41 41)
[*] NJ: 43 (45 44 44 43 39 42 40 40 39 38) *
[*] NY: 42 (43 42 42 42 41 40)
[*] TX: 42 (43 43 43 42 42 40 40 38 38 38)
[*] MA: 41 (45 43 42 41)
[*] WA: 41 (41 45 42 41 41 41 41 41 41 40) *
[*]VA: 40 (41 40 40 40)
[*] FL: 39 (42 41 40 39 38 37 37)
[*] IN: 39 (41 40 40 39 36 35 35 35 34 34)
[*] NC: 39 (42 42 41 39)
[*] IL: 38 (41 40 39 38 38 38)
[*] OR: 38 (44 39 38 38)
[*] PA: 38 (41 40 40 38 38 37 36 36 34 34) *
[*] MD: 37 (43 39 39 37 37 37)
[*] AZ: 36 (40? 39? 39 36)
[*] CT: 36 (44 38 38 36 34? 34? 34 34 34 33 33)
[*] MI: 36 (39 41 41 36 37 37 36 36 36 36) *
[*] MN: 36 (40 36 36 36 35 35 35 34)
[*] CO: 35 (41 37 37 35 35 35 ?? 31 31 30) *
[*] GA: 35 (38 37 36 35 34 34 34 34 34 33)
[*] OH: 35 (41 37 36 35)
[*] AR: 34 (46 45 35 34 33 31 31 31 29 29)
[*] NV: 34 (41 38 ?? 34)
[*] TN: 34 (38 ?? ?? 34)
[*] WI: 34 (40 37 37 34 35 30 28 29 29 29) *
[*] HI: 32 (35 34 32 32)
[*] NH: 31 (42 35 33 31 30)
[*] DE: 30 (34 33 32 30 30 29 28 27 26? 24)
[*] SC: 30 (33 33 31 30)
[*] IA: 29 (33 30 31 29 29 29 29 29 29 29 29 29) *
[*] NE: 28 (34 30 28 28 27 27 26 26 25 25)
[*] SD: 22 (30 29 24 22 22 22 21 21 20 20)
[/list]
Cutoffs Unknown

* means that CDR is official in that state.

Notes

For those asking about the removal of the tiers, I'd like to quote Jason himself:
[quote=peace09]
learn from my mistakes
[/quote]

Help contribute by sharing your state's cutoffs!
589 replies
SirAppel
Apr 1, 2025
CXP
Today at 1:40 AM
No more topics!
9 MATHCOUNTS STATE difficulty
Eddie_tiger   67
N Apr 4, 2025 by DhruvJha
I personally thought the problems were much easier than last year, but I didn't really improve as much as I would of liked to improve.
67 replies
Eddie_tiger
Apr 1, 2025
DhruvJha
Apr 4, 2025
MATHCOUNTS STATE difficulty
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tikachaudhuri
28 posts
#54
Y by
I thought the test was easier but it could also be because I was dumb last year
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RocketScientist
341 posts
#55
Y by
giratina3 wrote:
The difficulty jump from 2024 Mathcounts State to 2025 Mathcounts State was insane.

Do you mean difficulty drop? This year was much easier, but I feel like the problems were better last year.
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Inaaya
292 posts
#56
Y by
me who didn't qual for states last year
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giratina3
494 posts
#57
Y by
RocketScientist wrote:
giratina3 wrote:
The difficulty jump from 2024 Mathcounts State to 2025 Mathcounts State was insane.

Do you mean difficulty drop? This year was much easier, but I feel like the problems were better last year.

Yeah, that was what I meant by drop. Bro, the problems were so much better last year.
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mathkiddus
226 posts
#58
Y by
ethan2011 wrote:
achunaar000 wrote:
How did you guys do 27

Cheese it by assuming it’s a rectangle

buh, my friend gave me problem and cheesing it into 1 line works :skull: its just subtraction
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lily2030
595 posts
#59
Y by
A LOT of people at my states guessed target 8 right cause you just reverse the probability
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Mathematicalprodigy37
19 posts
#60
Y by
lily2030 wrote:
A LOT of people at my states guessed target 8 right cause you just reverse the probability

I used reverse linearity of expectation and cheesed but you could probably do that to.
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Mathematicalprodigy37
19 posts
#61
Y by
jb2015007 wrote:
i voted a little easier since the problems were much easier than last time but WAYYYY MORE SILLYABLE
Agreed. As a PROFFESSIONAL SILLIER, this test was really inconvenient for me :(
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DhruvJha
845 posts
#62
Y by
Mathematicalprodigy37 wrote:
jb2015007 wrote:
i voted a little easier since the problems were much easier than last time but WAYYYY MORE SILLYABLE
Agreed. As a PROFFESSIONAL SILLIER, this test was really inconvenient for me :(

orz
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EightYearLetterman
14 posts
#63
Y by
orangebear wrote:
There is a kid in my state (PA) who might make nationals who has autism (Has there ever been a kid with autism who made Nats?)

being someone diagnosed as likely on the spectrum I would estimate 1,000-5,000 people on the spectrum have gone to nats. It makes many aspects of life more challenging but on average it probably makes it easier to succeed in math competition.
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EightYearLetterman
14 posts
#64
Y by
DhruvJha wrote:
Andyluo wrote:
I agree with @above.

Mathcounts has had a much worse quality compared to last year.

The school test was very formulaic/unoriginal and just a bad problem set (however not too far off from a school test, just bad)

---

The chapter test was really really bad. The target problem set had to be the worst I've ever seen, with absolutely trivial questions 1-7, and an impossible p8.

----

The state test was just bad compared to last year, and the target test was really bad.

Target problems just felt unoriginal, and were guessable (p6 and p8) which led to a bad test to determine national qualifiers.

Sprint 1-25 weren't terrible, but problems 26-30 were just bad?

I mean what was problem 26 and problem 29
imo the other questions weren't too bad, but again the sprint round was a lot easier than last year

hpfly they make up for it at nats

Can anyone name a national test from 2024 AMC-10B to present that is harder than its counterpart from the previous year? It's becoming a thing...
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Akang11
36 posts
#65
Y by
Honestly that's pretty fair
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SpeedCuber7
1814 posts
#66
Y by
these problem writers bro

did maa cut their wage to minimum because my god these tests have sucked
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K124659
2547 posts
#67
Y by
giratina3 wrote:
The difficulty jump from 2024 Mathcounts State to 2025 Mathcounts State was insane.

2025 mathcounts state was coughing baby compared to 2024
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DhruvJha
845 posts
#68
Y by
K124659 wrote:
giratina3 wrote:
The difficulty jump from 2024 Mathcounts State to 2025 Mathcounts State was insane.

2025 mathcounts state was coughing baby compared to 2024

I mocked in just now and got a 36. In context I got a 25 last year at states and 19 at nats and have not practiced in a year. Why


first 20 on sprint, 26, 22

1,2,3,4,5,7,8 on target

why was this so easy
This post has been edited 3 times. Last edited by DhruvJha, Apr 4, 2025, 8:44 PM
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