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• Math books
  These '''math books''' are recommended by [[Art of Problem Solving]] administrators and m Levels of reading and math ability are loosely defined as follows:
  24 KB (3,182 words) - 10:10, 31 August 2024
• Divisibility rules
  ...the last <math>{n}</math> digits of the number are divisible by <math>2^n</math>. Thus, in particular, a number is divisible by 2 if and only if its units A number is divisible by <math>5^n</math> if and only if the last <math>n</math> digits are divisible by that power of 5.
  10 KB (1,572 words) - 21:11, 22 September 2024
• 2006 AMC 12A Problems
  ...ny dollars will it cost to purchase <math>5</math> sandwiches and <math>8</math> sodas? ...uad \mathrm{(C) \ } 33\qquad \mathrm{(D) \ } 34\qquad \mathrm{(E) \ } 35 </math>
  15 KB (2,223 words) - 12:43, 28 December 2020
• 2000 AMC 12 Problems/Problem 8
  ...consist of <math>1</math>, <math>5</math>, <math>13</math>, and <math>25</math> nonoverlapping unit squares, respectively. If the pattern were continued, ...ad\textbf{(C)}\ 20201 \qquad\textbf{(D)}\ 39801 \qquad\textbf{(E)}\ 40801</math>
  8 KB (1,226 words) - 22:15, 25 July 2024
• 2007 AMC 12B Problems
  ...d \mathrm{(C) \ } 786\qquad \mathrm{(D) \ } 867\qquad \mathrm{(E) \ } 876</math> ...} 24\qquad \mathrm {(C)} 25\qquad \mathrm {(D)} 26\qquad \mathrm {(E)} 28</math>
  12 KB (1,814 words) - 11:58, 19 February 2020
• 2002 AMC 10A Problems/Problem 1
  The ratio <math>\frac{10^{2000}+10^{2002}}{10^{2001}+10^{2001}}</math> is closest to which of the following numbers? ...0.2 \qquad \textbf{(C)}\ 1 \qquad \textbf{(D)}\ 5 \qquad \textbf{(E)}\ 10</math>
  736 bytes (84 words) - 23:38, 18 July 2024
• 2004 AMC 10B Problems
  ...itheater has <math>33</math> seats. Rows <math>12</math> through <math>22</math> are reserved for a youth club. How many seats are reserved for this club? ...\mathrm{(C) \ } 363\qquad \mathrm{(D) \ } 396\qquad \mathrm{(E) \ } 726 </math>
  14 KB (2,137 words) - 14:29, 9 June 2024
• 2021 GMC 10B
  What is <math>5!-4!+3!-2!+1!-0!?</math> ...\qquad\textbf{(C)} ~101 \qquad\textbf{(D)} ~102 \qquad\textbf{(E)} ~103 </math>
  11 KB (1,695 words) - 13:33, 7 March 2022
• 2010 AMC 10B Problems
  What is <math>100(100-3)-(100\cdot100-3)</math>? <math>
  12 KB (1,817 words) - 17:33, 27 August 2024
• 2010 AMC 12B Problems
  ...during her <math>9</math>-hour work day. The first meeting took <math>45</math> minutes and the second meeting took twice as long. What percent of her wor ...0 \qquad \textbf{(C)}\ 25 \qquad \textbf{(D)}\ 30 \qquad \textbf{(E)}\ 35</math>
  12 KB (1,845 words) - 12:00, 19 February 2020
• 2017 AMC 8 Problems
  ...textbf{(D) }2+0+1 \times 7\qquad\textbf{(E) }2 \times 0 \times 1 \times 7</math> ...were distributed among the three candidates. If Brenda received <math>36</math> votes, then how many votes were cast all together?
  12 KB (1,771 words) - 08:41, 13 June 2024
• 2006 SMT/General Problems
  After a cyclist has gone <math> \frac{2}{3} </math> of his route, he gets a flat tire. Finishing on foot, he spends twice as l ...he probability that the customer buys both bread and milk is <math> 0.30 </math>. What is the probability that the customer would buy either bread or milk
  10 KB (1,477 words) - 15:02, 27 May 2012
• 1964 AHSME Problems
  What is the value of <math>[\log_{10}(5\log_{10}100)]^2</math>? <math>\textbf{(A)}\ \log_{10}50 \qquad
  19 KB (2,907 words) - 13:16, 20 February 2020
• 2011 UNCO Math Contest II Problems
  ...factorial, is computed as <math>n! = 1 \cdot 2 \cdot 3 \cdot 4 \cdots n</math> • The factorials are <math>1, 2, 6, 24, 120, 720,\ldots</math>
  5 KB (846 words) - 21:10, 7 November 2014
• 2011 UNCO Math Contest II Problems/Problem 4
  ...2+1,\cdots\right\}</math> be the set of all positive squares plus <math>1</math> and ...0,\cdots\right\}</math> be the set of all positive squares plus <math>100</math>.
  1 KB (173 words) - 20:00, 28 August 2015
• Gmaas
  ...999999999999999999999999999999999^{9999999999999999999999999999999999999}</math> years and counting. That's older than he is. EDIT: It is not older than he ...an made a mistake and reciprocated the fee," you must pay <math>1,000,000</math> to solve a problem using the Games theorem. You wouldn't waste that much m
  69 KB (11,805 words) - 19:49, 18 December 2019
• 2006 iTest Problems
  <math>\mathrm{(A)}\, 8</math> <math>\mathrm{(A)}\, 15\quad\mathrm{(B)}\, \frac{40}{3}</math>
  31 KB (4,811 words) - 23:02, 3 November 2023
• Reaper Archives
  | 101|| crosby87|| 45|| 7912.032|| 175.823 | 86 || I-Can-Do-Math || 6 || 3059.612 || 509.935
  187 KB (10,824 words) - 17:27, 3 February 2022
• Pythagoras Theorem
  ...ath>a</math> and <math>b</math> are the legs of the triangle, and <math>c</math> is the hypotenuse. ...the angles are not right. It is probably the most famous Theorem in all of math!
  6 KB (890 words) - 10:12, 23 June 2019
• Pascal's Triangle and Pythagorean Theorem
  <math>{n \choose k}={n-1\choose k-1}+{n-1\choose k}</math> ...n}{k}</math> is the binomial coefficient <math>\binom{n}{k} = nCk = C_k^n</math>.
  15 KB (2,425 words) - 08:25, 13 February 2020

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