17 February 2017

• 00:3000:30, 17 February 2017 diff hist −25 2017 AMC 12B Problems →Problem 25
• 00:2900:29, 17 February 2017 diff hist −23 2017 AMC 12B Problems No edit summary
• 00:2700:27, 17 February 2017 diff hist −47 2017 AMC 12B Problems →Problem 23
• 00:2600:26, 17 February 2017 diff hist −50 2017 AMC 12B Problems →Problem 22
• 00:2000:20, 17 February 2017 diff hist +731 2017 AMC 12B Problems No edit summary
• 00:1500:15, 17 February 2017 diff hist −48 2017 AMC 12B Problems →Problem 7
• 00:1300:13, 17 February 2017 diff hist −13 2017 AMC 12B Problems →Problem 5

16 February 2017

• 23:1223:12, 16 February 2017 diff hist −66 2017 AMC 12B Problems/Problem 18 No edit summary
• 23:1223:12, 16 February 2017 diff hist +1 2017 AMC 12B No edit summary
• 22:4822:48, 16 February 2017 diff hist +2,447 2017 AMC 12B Problems/Problem 18 No edit summary

8 February 2017

• 19:3419:34, 8 February 2017 diff hist +13 2017 AMC 10A Problems/Problem 11 No edit summary
• 19:3219:32, 8 February 2017 diff hist −15 2017 AMC 10A Problems/Problem 11 No edit summary
• 19:3219:32, 8 February 2017 diff hist +47 2017 AMC 10A Problems/Problem 11 No edit summary

3 April 2016

• 15:4515:45, 3 April 2016 diff hist +17 AMC historical results →AIME II
• 15:4515:45, 3 April 2016 diff hist +19 AMC historical results →AIME I

2 April 2016

• 19:1519:15, 2 April 2016 diff hist +53 AMC historical results No edit summary

21 February 2016

• 11:1711:17, 21 February 2016 diff hist +693 N 2016 AMC 12B Problems/Problem 21 Created page with "Let <math>ABCD</math> be a unit square. Let <math>Q_1</math> be the midpoint of <math>\overline{CD}</math>. For <math>i=1,2,\dots,</math> let <math>P_i</math> be the intersect..."
• 11:1611:16, 21 February 2016 diff hist +612 N 2016 AMC 12B Problems/Problem 20 Created page with "==Problem== A set of teams held a round-robin tournament in which every team played every other team exactly once. Every team won <math>10</math> games and lost <math>10</mat..."
• 11:1511:15, 21 February 2016 diff hist +521 N 2016 AMC 12B Problems/Problem 19 Created page with "==Problem== Tom, Dick, and Harry are playing a game. Starting at the same time, each of them flips a fair coin repeatedly until he gets his first head, at which point he stop..."
• 11:1511:15, 21 February 2016 diff hist +371 N 2016 AMC 12B Problems/Problem 18 Created page with "==Problem== What is the area of the region enclosed by the graph of the equation <math>x^2+y^2=|x|+|y|?</math> <math>\textbf{(A)}\ \pi+\sqrt{2} \qquad\textbf{(B)}\ \pi+2 \qq..."
• 11:1311:13, 21 February 2016 diff hist −88 2016 AMC 12B Problems/Problem 17 No edit summary
• 11:1211:12, 21 February 2016 diff hist +2,991 N 2016 AMC 12B Problems/Problem 17 Created page with "==Problem== In <math>\triangle ABC</math> shown in the figure, <math>AB=7</math>, <math>BC=8</math>, <math>CA=9</math>, and <math>\overline{AH}</math> is an altitude. Points ..."
• 11:1011:10, 21 February 2016 diff hist +348 N 2016 AMC 12B Problems/Problem 16 Created page with "==Problem== In how many ways can <math>345</math> be written as the sum of an increasing sequence of two or more consecutive positive integers? <math>\textbf{(A)}\ 1\qquad\t..."
• 11:0911:09, 21 February 2016 diff hist +597 N 2016 AMC 12B Problems/Problem 15 Created page with "==Problem== All the numbers <math>2, 3, 4, 5, 6, 7</math> are assigned to the six faces of a cube, one number to each face. For each of the eight vertices of the cube, a prod..."
• 11:0311:03, 21 February 2016 diff hist +435 N 2016 AMC 12B Problems/Problem 14 Created page with "==Problem== The sum of an infinite geometric series is a positive number <math>S</math>, and the second term in the series is <math>1</math>. What is the smallest possible va..."
• 10:5910:59, 21 February 2016 diff hist +625 N 2016 AMC 12B Problems/Problem 13 Created page with "==Problem== Alice and Bob live <math>10</math> miles apart. One day Alice looks due north from her house and sees an airplane. At the same time Bob looks due west from his ho..."
• 10:5710:57, 21 February 2016 diff hist +2 2016 AMC 12B Problems/Problem 12 No edit summary
• 10:5710:57, 21 February 2016 diff hist +540 N 2016 AMC 12B Problems/Problem 12 Created page with "==Problem== All the numbers <math>1, 2, 3, 4, 5, 6, 7, 8, 9</math> are written in a <math>3\times3</math> array of squares, one number in each square, in such a way that if t..."
• 10:5610:56, 21 February 2016 diff hist +472 N 2016 AMC 12B Problems/Problem 11 Created page with "==Problem== How many squares whose sides are parallel to the axes and whose vertices have coordinates that are integers lie entirely within the region bounded by the line <ma..."
• 10:5410:54, 21 February 2016 diff hist +499 N 2016 AMC 12B Problems/Problem 10 Created page with "==Problem== A quadrilateral has vertices <math>P(a,b)</math>, <math>Q(b,a)</math>, <math>R(-a, -b)</math>, and <math>S(-b, -a)</math>, where <math>a</math> and <math>b</math>..."
• 10:5310:53, 21 February 2016 diff hist +650 N 2016 AMC 12B Problems/Problem 9 Created page with "==Problem== Carl decided to in his rectangular garden. He bought <math>20</math> fence posts, placed one on each of the four corners, and spaced out the rest evenly along the..."
• 10:5010:50, 21 February 2016 diff hist +613 N 2016 AMC 12B Problems/Problem 8 Created page with "==Problem== A thin piece of wood of uniform density in the shape of an equilateral triangle with side length <math>3</math> inches weighs <math>12</math> ounces. A second pie..."
• 10:4810:48, 21 February 2016 diff hist +776 N 2016 AMC 12B Problems/Problem 7 Created page with "==Problem== Josh writes the numbers <math>1,2,3,\dots,99,100</math>. He marks out <math>1</math>, skips the next number <math>(2)</math>, marks out <math>3</math>, and contin..."
• 10:4710:47, 21 February 2016 diff hist +509 N 2016 AMC 12B Problems/Problem 6 Created page with "==Problem== All three vertices of <math>\bigtriangleup ABC</math> lie on the parabola defined by <math>y=x^2</math>, with <math>A</math> at the origin and <math>\overline{BC}..."
• 10:4510:45, 21 February 2016 diff hist +571 N 2016 AMC 12B Problems/Problem 5 Created page with "==Problem== The War of <math>1812</math> started with a declaration of war on Thursday, June <math>18</math>, <math>1812</math>. The peace treaty to end the war was signed <m..."
• 10:4410:44, 21 February 2016 diff hist 0 2016 AMC 12B Problems/Problem 4 No edit summary
• 10:4310:43, 21 February 2016 diff hist +443 N 2016 AMC 12B Problems/Problem 4 Created page with "==Problem== The ratio of the measures of two acute angles is <math>5:4</math>, and the complement of one of these two angles is twice as large as the complement of the other...."
• 10:4210:42, 21 February 2016 diff hist 0 2016 AMC 12B Problems/Problem 3 No edit summary
• 10:4010:40, 21 February 2016 diff hist +229 N 2016 AMC 12B Problems/Problem 3 Created page with "==Problem== Let <math>x=-2016</math>. What is the value of <math>\bigg|</math> <math>||x|-x|-|x|</math> <math>\bigg|</math> <math>-x</math>? ==Solution== ==See Also== {{AMC..."
• 10:3910:39, 21 February 2016 diff hist 0 2016 AMC 12B Problems/Problem 2 →See Also
• 10:3810:38, 21 February 2016 diff hist −1 2016 AMC 12B Problems/Problem 2 →See Also
• 10:3710:37, 21 February 2016 diff hist +416 N 2016 AMC 12B Problems/Problem 2 Created page with "==Problem== The harmonic mean of two numbers can be calculated as twice their product divided by their sum. The harmonic mean of <math>1</math> and <math>2016</math> is close..."
• 10:3610:36, 21 February 2016 diff hist −58 2016 AMC 12B Problems/Problem 1 No edit summary
• 10:3510:35, 21 February 2016 diff hist +400 2016 AMC 12B Problems/Problem 1 No edit summary

8 February 2016

• 01:1701:17, 8 February 2016 diff hist −2 User:Mathmaster2012 No edit summary

18 January 2016

• 22:3822:38, 18 January 2016 diff hist −4 User:MathStudent2002 No edit summary

14 December 2015

• 00:0700:07, 14 December 2015 diff hist −112 2014 IMO Problems/Problem 4 No edit summary
• 00:0500:05, 14 December 2015 diff hist +14 2014 IMO Problems/Problem 4 No edit summary
• 00:0500:05, 14 December 2015 diff hist +9 2014 IMO Problems/Problem 4 No edit summary
• 00:0400:04, 14 December 2015 diff hist +13 2014 IMO Problems/Problem 4 No edit summary