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- 17:40, 12 September 2025 2025 AMC 10A Problems/Problem 13 (hist) [0 bytes] Ogljh (talk | contribs) (Created page with "Viva la vida")
- 17:38, 12 September 2025 2025 AMC 10A Problems/Problem 16 (hist) [0 bytes] Sriharimysore (talk | contribs) (Created page with "1231")
- 15:06, 12 September 2025 2000 CEMC Gauss (Grade 8) Problems/Problem 10 (hist) [1,635 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== Karl had his salary reduced by <math>10\%</math>. He was later promoted and his salary was increased by <math>10\%</math>. If his initial salary was <math>\$20~0...")
- 14:52, 12 September 2025 2000 CEMC Gauss (Grade 8) Problems/Problem 5 (hist) [1,156 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The graph shows the complete scoring summary for the last game played by the eight players on Gaussian Guardians intramural basketball team. The total number of...")
- 14:46, 12 September 2025 2000 CEMC Gauss (Grade 8) Problems/Problem 15 (hist) [1,364 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== <math>ABCD</math> is a square that is made up of two identical rectangles and two squares of area <math>4 </math> <math>\text{cm}^{2}</math> and <math>16 </math>...")
- 14:38, 12 September 2025 2000 CEMC Gauss (Grade 8) Problems/Problem 14 (hist) [973 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== A set of five different positive integers has an average (arithmetic mean) of <math>11</math>. What is the largest possible number in this set? <math> \text{ (A...")
- 14:06, 12 September 2025 2000 CEMC Gauss (Grade 7) Problems/Problem 1 (hist) [293 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The value of <math>987 + 113 - 1000</math> is <math> \text{ (A) }\ 90 \qquad\text{ (B) }\ 10 \qquad\text{ (C) }\ 110 \qquad\text{ (D) }\ 2000 \qquad\text{ (E) }...")
- 13:46, 12 September 2025 2000 CEMC Gauss (Grade 8) Problems/Problem 4 (hist) [1,196 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== In the addition shown, a digit, either the same or different, can be placed in each of the two boxes. What is the sum of the two missing digits? <!--To do: add t...")
- 23:16, 11 September 2025 2023 CEMC Fermat Problems/Problem 6 (hist) [658 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== Vivek is painting three doors. The doors are numbered 1, 2 and 3. Each door is to be painted one colour: either black or gold. One possibility is that door 1 is pa...")
- 23:14, 11 September 2025 2023 CEMC Fermat Problems/Problem 5 (hist) [762 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== Ava's machine takes four-digit positive integers as input. When the four-digit integer <math>ABCD</math> is input, the machine outputs the integer <math>A \times...")
- 15:52, 11 September 2025 2023 CEMC Fermat Problems/Problem 3 (hist) [722 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== When <math>x = 2</math>, the expression <math>2x^2 + 3x^2</math> equals <math> \text{ (A) }\ 14 \qquad\text{ (B) }\ 10 \qquad\text{ (C) }\ 12 \qquad\text{ (D) }\...")
- 15:45, 11 September 2025 2023 CEMC Fermat Problems/Problem 2 (hist) [842 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== If <math>3 + x = 5</math> and <math>-3 + y = 5</math>, then <math>x + y</math> equals <math> \text{ (A) }\ 4 \qquad\text{ (B) }\ 16 \qquad\text{ (C) }\ 6 \qquad\t...")
- 15:39, 11 September 2025 2023 CEMC Fermat Problems/Problem 1 (hist) [282 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The value of <math>0.3 + 0.03</math> is <math> \text{ (A) }\ 0.303 \qquad\text{ (B) }\ 0.6 \qquad\text{ (C) }\ 3.3 \qquad\text{ (D) }\ 0.33 \qquad\text{ (E) }\ 0....")
- 15:00, 11 September 2025 2000 CEMC Gauss (Grade 8) Problems/Problem 3 (hist) [553 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The value of <math>\frac{5 + 4 - 3}{5 + 4 + 3}</math> is <math> \text{ (A) }\ -1 \qquad\text{ (B) }\ \frac{1}{3} \qquad\text{ (C) }\ 2 \qquad\text{ (D) }\ \frac...")
- 14:37, 11 September 2025 2022 CEMC Cayley Problems/Problem 9 (hist) [870 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The operation <math>a \nabla b</math> is defined by <math>a \nabla b = \frac{a + b}{a - b}</math> for all integers <math>a</math> and <math>b</math> with <math>a \...")
- 14:27, 11 September 2025 2022 CEMC Cayley Problems/Problem 8 (hist) [1,249 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== A rectangle has positive integer side lengths and an area of <math>24</math>. The perimeter of the rectangle cannot be <math> \text{ (A) }\ 20 \qquad\text{ (B) }\...")
- 14:12, 11 September 2025 2022 CEMC Cayley Problems/Problem 2 (hist) [1,423 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The integer <math>119</math> is a multiple of <math> \text{ (A) }\ 2 \qquad\text{ (B) }\ 3 \qquad\text{ (C) }\ 5 \qquad\text{ (D) }\ 7 \qquad\text{ (E) }\ 11</mat...")
- 13:47, 11 September 2025 2022 CEMC Cayley Problems/Problem 15 (hist) [1,037 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The integers <math>a</math>, <math>b</math>, and <math>c</math> satisfy the equations <math>a + 5 = b</math> and <math>5 + b = c</math> and <math>b + c = a</math>....")
- 13:20, 11 September 2025 2023 CEMC Cayley Problems/Problem 1 (hist) [692 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== What is the value of <math>\frac{1}{1} + \frac{2}{2} + \frac{3}{3}</math>? <math> \text{ (A) }\ 1 \qquad\text{ (B) }\ 0 \qquad\text{ (C) }\ 3 \qquad\text{ (D) }\...")
- 13:14, 11 September 2025 2022 CEMC Cayley Problems/Problem 1 (hist) [350 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The expression <math>2 + (0 \times 2^2)</math> is equal to <math> \text{ (A) }\ 1 \qquad\text{ (B) }\ 2 \qquad\text{ (C) }\ 4 \qquad\text{ (D) }\ 5 \qquad\text{ (...")
- 03:11, 11 September 2025 2025 AMC 10A Problems/Problem 9 (hist) [0 bytes] Glowworm (talk | contribs) (Created page with "The 2020 AMC 10A has not been created yet. Try checking out some of the other problems from the past.")
- 15:44, 9 September 2025 2006 CEMC Fermat Problems/Problem 8 (hist) [1,417 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== If Corina had added the numbers <math>P</math> and <math>Q</math> correctly, the answer would have been <math>16</math>. By mistake, she subtracted <math>Q</math>...")
- 15:38, 9 September 2025 2006 CEMC Fermat Problems/Problem 7 (hist) [685 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== What is the smallest positive integer <math>p</math> for which <math>\sqrt{2^3 \times 5 \times p}</math> is an integer? <math> \text{ (A) }\ 2 \qquad\text{ (B) }\...")
- 15:34, 9 September 2025 2006 CEMC Fermat Problems/Problem 6 (hist) [809 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The regular price for a T-shirt is <math>\$25</math> and the regular price for a pair of jeans is <math>\$75</math>. If the T-shirt is sold at a <math>30\%</math>...")
- 15:29, 9 September 2025 2006 CEMC Fermat Problems/Problem 5 (hist) [930 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== Three cubes have edges of lengths <math>4</math>, <math>5</math>, and <math>6</math>. The average (mean) of their volumes is {{Image needed}} <math> \text{ (A) }\...")
- 15:24, 9 September 2025 2006 CEMC Fermat Problems/Problem 4 (hist) [526 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The value <math>(\sqrt{\sqrt{9} + \sqrt{1}})^{4}</math> is <math> \text{ (A) }\ \sqrt{10} \qquad\text{ (B) }\ 10 \qquad\text{ (C) }\ 16 \qquad\text{ (D) }\ 82 \qq...")
- 15:02, 9 September 2025 2006 CEMC Fermat Problems/Problem 3 (hist) [598 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The value <math>\frac{4^3}{10^2 - 6^2}</math> is <math> \text{ (A) }\ 1 \qquad\text{ (B) }\ 0.5 \qquad\text{ (C) }\ -35.36 \qquad\text{ (D) }\ 1.5 \qquad\text{ (E...")
- 14:58, 9 September 2025 2006 CEMC Fermat Problems/Problem 2 (hist) [787 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== If <math>2x + 3x + 4x = 12 + 9 + 6</math>, then <math>x</math> equals <math> \text{ (A) }\ 6 \qquad\text{ (B) }\ 3 \qquad\text{ (C) }\ 1 \qquad\text{ (D) }\ \frac...")
- 14:54, 9 September 2025 2006 CEMC Fermat Problems/Problem 1 (hist) [505 bytes] Anabel.disher (talk | contribs) (Created page with "==Problem== The value of <math>\frac{1}{4 \times 5}</math> is <math> \text{ (A) }\ 0.45 \qquad\text{ (B) }\ 0.05 \qquad\text{ (C) }\ 1.25 \qquad\text{ (D) }\ 0.20 \qquad\text...")
- 11:45, 9 September 2025 2025 SSMO Relay Round 5 Answer Key (hist) [9 bytes] Pinkpig (talk | contribs) (Created page with "#7 #20 #8")
- 11:45, 9 September 2025 2025 SSMO Relay Round 4 Answer Key (hist) [10 bytes] Pinkpig (talk | contribs) (Created page with "#3 #21 #17")
- 11:45, 9 September 2025 2025 SSMO Relay Round 3 Answer Key (hist) [17 bytes] Pinkpig (talk | contribs) (Created page with "#392 #153664 #168")
- 11:45, 9 September 2025 2025 SSMO Relay Round 2 Answer Key (hist) [13 bytes] Pinkpig (talk | contribs) (Created page with "#66 #130 #463")
- 11:45, 9 September 2025 2025 SSMO Relay Round 1 Answer Key (hist) [12 bytes] Pinkpig (talk | contribs) (Created page with "#3 #4500 #90")
- 11:44, 9 September 2025 2025 SSMO Relay Round 5 Problems/Problem 3 (hist) [234 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> How many positive integers <math>n</math> satisfy <cmath>\operatorname{lcm}(\operatorname{gcd}(n, n^2 + T^2), \operatorname{gcd}(T, n^...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 5 Problems/Problem 2 (hist) [645 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> Ethan places <math>T</math> red cards and <math>T</math> blue cards in a row so that the leftmost card is red and every second card is...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 5 Problems/Problem 1 (hist) [727 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== The numbers <math>17</math> and <math>25</math> are written on a blackboard. Every second, if the number <math>n</math> is currently written on the blackboard, it...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 4 Problems/Problem 3 (hist) [531 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> A particle moves in the coordinate plane such that at any time <math>t,</math> its position is <cmath>\left(\sum_{a=1}^{T-1} \cos(at),...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 4 Problems/Problem 2 (hist) [443 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> Jonathan and Kate are playing a game with <math>n</math> sticks. On each turn, a player may remove <math>1,</math> <math>2,</math> or...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 4 Problems/Problem 1 (hist) [403 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Call a positive integer <i>chuzzed</i> if the sum of the digits in its binary representation is equal to the units digit of its base-<math>10</math> representatio...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 3 Problems/Problem 3 (hist) [480 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> The numbers <math>1</math> and <math>2</math> are written on a board. Every second, if the numbers currently on the board are <math>x<...")
- 11:44, 9 September 2025 2025 SSMO Relay Round 3 Problems/Problem 2 (hist) [245 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> In triangle <math>ABC,</math> angle <math>C</math> is a right angle. If the median from <math>C</math> has length <math>T,</math> find...")
- 11:43, 9 September 2025 2025 SSMO Relay Round 3 Problems/Problem 1 (hist) [381 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Michael, Nico, and Jackson are splitting a <math>100</math> dollar bill. Michael's favorite number is <math>3,</math> so he insists on paying a positive amount of...")
- 11:43, 9 September 2025 2025 SSMO Relay Round 2 Problems/Problem 3 (hist) [682 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> Define a \textit{multiplicative partition} of a positive integer <math>n</math> as the value of a product <math>a_1a_2\cdots a_k,</mat...")
- 11:43, 9 September 2025 2025 SSMO Relay Round 2 Problems/Problem 2 (hist) [340 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> Let <math>x_1,x_2,\dots, x_{T}</math> be an increasing sequence of positive integers such that for every positive integer <math>1\le n...")
- 11:43, 9 September 2025 2025 SSMO Relay Round 2 Problems/Problem 1 (hist) [204 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>(p,q,r)</math> be the real solution to following system: <cmath>\begin{align*} pq &= 20 \\ qr &= 25 \\ r+p &= 9. \end{align*}</cmath> Compute <math>p^2+...")
- 11:42, 9 September 2025 2025 SSMO Relay Round 1 Problems/Problem 2 (hist) [202 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> A positive integer is called \textit{zro} if more than half of its digits are <math>0</math>. Find the sum of the first <math>T^2</mat...")
- 11:42, 9 September 2025 2025 SSMO Relay Round 1 Problems/Problem 3 (hist) [194 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>T = TNYWR.</math> Positive integers <math>m</math> and <math>n</math> satisfy <math>m^2-n^2 = T</math>. What is the least possible value of <math>m+n</m...")
- 11:42, 9 September 2025 2025 SSMO Relay Round 1 Problems/Problem 1 (hist) [917 bytes] Pinkpig (talk | contribs) (Created page with "==Problem== Let <math>x_1, x_2, \ldots, x_7</math> be distinct integers such that the mean of <math>\{x_i,x_{i+1},x_{i+2}\}</math> is an integer for all integers <math>1\le i...")
- 11:41, 9 September 2025 2025 SSMO Relay Round 5 Problems (hist) [1,745 bytes] Pinkpig (talk | contribs) (Created page with "==Problem 1== The numbers <math>17</math> and <math>25</math> are written on a blackboard. Every second, if the number <math>n</math> is currently written on the blackboard,...")