User contributions
- 14:18, 6 March 2016 (diff | hist) . . (+364) . . 2016 AIME I Problems/Problem 9 (→Note: +diagram)
- 10:43, 5 March 2016 (diff | hist) . . (+225) . . 2016 AIME I Problems/Problem 14 (+diagram)
- 14:28, 27 February 2016 (diff | hist) . . (+901) . . 2013 AMC 10A Problems/Problem 20 (added more diagrams to Solution 1)
- 09:45, 25 February 2016 (diff | hist) . . (-2) . . 2000 AMC 12 Problems/Problem 18 (→Solution: correction)
- 10:35, 22 February 2016 (diff | hist) . . (+507) . . 2016 AMC 12B Problems/Problem 23
- 10:19, 22 February 2016 (diff | hist) . . (+1,591) . . 2016 AMC 12B Problems/Problem 24
- 03:43, 22 February 2016 (diff | hist) . . (+680) . . 2016 AMC 10B Problems/Problem 15 (better solution)
- 18:28, 21 February 2016 (diff | hist) . . (+889) . . 2013 AIME II Problems/Problem 11 (Solution 2)
- 16:38, 21 February 2016 (diff | hist) . . (+1,005) . . 2016 AMC 10B Problems/Problem 24
- 14:05, 21 February 2016 (diff | hist) . . (+228) . . 2016 AMC 10B Problems/Problem 9 (→Solution)
- 13:44, 21 February 2016 (diff | hist) . . (+26) . . 2016 AMC 10B Problems/Problem 8 (→Solution: n>=2)
- 13:40, 21 February 2016 (diff | hist) . . (-474) . . 2016 AMC 10B Problems/Problem 8 (need powers of 15, not 5)
- 13:37, 21 February 2016 (diff | hist) . . (-918) . . 2016 AMC 10B Problems/Problem 18 (correct answer is E)
- 13:08, 21 February 2016 (diff | hist) . . (+943) . . 2016 AMC 10B Problems/Problem 22
- 12:53, 21 February 2016 (diff | hist) . . (+1,252) . . 2016 AMC 10B Problems/Problem 21
- 12:45, 21 February 2016 (diff | hist) . . (+1,071) . . 2016 AMC 10B Problems/Problem 14
- 12:40, 21 February 2016 (diff | hist) . . (+361) . . 2016 AMC 10B Problems/Problem 12
- 12:36, 21 February 2016 (diff | hist) . . (+925) . . 2016 AMC 10B Problems/Problem 11
- 12:30, 21 February 2016 (diff | hist) . . (+423) . . 2016 AMC 10B Problems/Problem 6
- 12:13, 21 February 2016 (diff | hist) . . (+469) . . 2016 AMC 10B Problems/Problem 5
- 12:08, 21 February 2016 (diff | hist) . . (+299) . . 2016 AMC 10B Problems/Problem 4
- 12:04, 21 February 2016 (diff | hist) . . (+109) . . m 2016 AMC 10B Problems/Problem 4
- 12:02, 21 February 2016 (diff | hist) . . (+43) . . 2016 AMC 10B Problems/Problem 3
- 11:49, 21 February 2016 (diff | hist) . . (+115) . . 2016 AMC 10B Problems/Problem 2
- 11:45, 21 February 2016 (diff | hist) . . (+125) . . 2016 AMC 10B Problems/Problem 1
- 11:37, 21 February 2016 (diff | hist) . . (+55) . . m 2016 AMC 10B Problems/Problem 8 (→Solution)
- 06:46, 15 February 2016 (diff | hist) . . (+62) . . m 2015 AMC 10A Problems/Problem 14 (→Solution 4)
- 06:29, 15 February 2016 (diff | hist) . . (+2,622) . . 2015 AMC 10A Problems/Problem 14 (added long solution)
- 05:27, 15 February 2016 (diff | hist) . . (+395) . . 2015 AMC 10A Problems/Problem 14 (+diagram, format)
- 12:08, 14 February 2016 (diff | hist) . . (+7) . . 2000 AMC 12 Problems/Problem 25 (→Solution 1: fix asy)
- 01:15, 5 February 2016 (diff | hist) . . (+531) . . 1990 AHSME Problems/Problem 30 (current)
- 23:50, 4 February 2016 (diff | hist) . . (+855) . . 1990 AHSME Problems/Problem 29
- 15:32, 4 February 2016 (diff | hist) . . (+864) . . 1990 AHSME Problems/Problem 25
- 14:08, 4 February 2016 (diff | hist) . . (+679) . . 1990 AHSME Problems/Problem 24 (current)
- 13:41, 4 February 2016 (diff | hist) . . (+503) . . 1990 AHSME Problems/Problem 23 (current)
- 13:17, 4 February 2016 (diff | hist) . . (+319) . . 1990 AHSME Problems/Problem 22 (current)
- 12:56, 4 February 2016 (diff | hist) . . (+998) . . 1990 AHSME Problems/Problem 21 (current)
- 11:52, 4 February 2016 (diff | hist) . . (+416) . . 1990 AHSME Problems/Problem 18 (current)
- 11:44, 4 February 2016 (diff | hist) . . (+9) . . 1990 AHSME Problems/Problem 14
- 11:43, 4 February 2016 (diff | hist) . . (+417) . . 1990 AHSME Problems/Problem 13
- 06:11, 4 February 2016 (diff | hist) . . (+62) . . 2016 AMC 12A Problems/Problem 5 (→Solution)
- 05:42, 4 February 2016 (diff | hist) . . (+251) . . 1990 AHSME Problems/Problem 17 (current)
- 05:37, 4 February 2016 (diff | hist) . . (+168) . . 1990 AHSME Problems/Problem 15 (current)
- 05:32, 4 February 2016 (diff | hist) . . (+125) . . 1990 AHSME Problems/Problem 12
- 05:26, 4 February 2016 (diff | hist) . . (+152) . . 1990 AHSME Problems/Problem 11
- 05:22, 4 February 2016 (diff | hist) . . (+552) . . 1990 AHSME Problems/Problem 9
- 04:55, 4 February 2016 (diff | hist) . . (+141) . . 1990 AHSME Problems/Problem 8 (current)
- 04:49, 4 February 2016 (diff | hist) . . (+438) . . 1990 AHSME Problems/Problem 7 (current)
- 04:39, 4 February 2016 (diff | hist) . . (+353) . . 1990 AHSME Problems/Problem 6 (current)
- 04:05, 4 February 2016 (diff | hist) . . (+192) . . 1990 AHSME Problems/Problem 5 (current)
- 03:51, 4 February 2016 (diff | hist) . . (+216) . . 1990 AHSME Problems/Problem 4
- 03:44, 4 February 2016 (diff | hist) . . (+220) . . 1990 AHSME Problems/Problem 3 (current)
- 03:38, 4 February 2016 (diff | hist) . . (+99) . . 1990 AHSME Problems/Problem 2 (→Solution) (current)
- 03:35, 4 February 2016 (diff | hist) . . (-13) . . m 1990 AHSME Problems/Problem 1 (current)
- 03:32, 4 February 2016 (diff | hist) . . (+604) . . 1989 AHSME Problems/Problem 28
- 02:20, 4 February 2016 (diff | hist) . . (+487) . . 1989 AHSME Problems/Problem 24
- 02:03, 4 February 2016 (diff | hist) . . (+1) . . m 1989 AHSME Problems/Problem 21 (→Problem)
- 01:59, 4 February 2016 (diff | hist) . . (+724) . . 1989 AHSME Problems/Problem 15
- 13:48, 3 February 2016 (diff | hist) . . (+311) . . 1989 AHSME Problems/Problem 10 (→Solution) (current)
- 10:47, 22 May 2014 (diff | hist) . . (+178) . . 1997 PMWC Problems/Problem I1 (current)
- 01:55, 30 May 2013 (diff | hist) . . (+1,171) . . N 1989 AHSME Problems/Problem 27 (Created page with "== Problem == Let <math>n</math> be a positive integer. If the equation <math>2x+2y+z=n</math> has 28 solutions in positive integers <math>x</math>, <math>y</math>, and <math>z</...")
- 01:15, 30 May 2013 (diff | hist) . . (+112) . . m 1989 AHSME Problems (→Problem 27)
- 01:05, 30 May 2013 (diff | hist) . . (+1,459) . . N 1989 AHSME Problems/Problem 12 (Created page with "== Problem == The traffic on a certain east-west highway moves at a constant speed of 60 miles per hour in both directions. An eastbound driver passes 20 west-bound vehicles in ...")
- 00:27, 30 May 2013 (diff | hist) . . (+1,480) . . N 1989 AHSME Problems/Problem 7 (Created page with "== Problem == In <math> \triangle ABC</math>, <math>\angle A = 100^\circ</math>, <math>\angle B = 50^\circ</math>, <math>\angle C = 30^\circ</math>, <math>\overline{AH}</math> i...")
- 00:11, 30 May 2013 (diff | hist) . . (+24) . . 1989 AHSME Problems/Problem 6
- 12:54, 24 September 2012 (diff | hist) . . (+898) . . N 1989 AHSME Problems/Problem 11 (Created page with "== Problem == Let <math>a</math>, <math>b</math>, <math>c</math>, and <math>d</math> be positive integers with <math> a < 2b</math>, <math>b < 3c </math>, and <math>c<4d</math>....")
- 12:53, 24 September 2012 (diff | hist) . . (+45) . . m 1989 AHSME Problems
- 12:53, 24 September 2012 (diff | hist) . . (-501) . . 1989 AHSME Problems
- 12:52, 24 September 2012 (diff | hist) . . (+456) . . 1989 AHSME Problems (→Problem 11)
- 12:41, 24 September 2012 (diff | hist) . . (+887) . . 1989 AHSME Problems/Problem 22
- 11:10, 24 September 2012 (diff | hist) . . (+1,876) . . N 1989 AHSME Problems/Problem 22 (Created page with "== Problem == A child has a set of 96 distinct blocks. Each block is one of 2 materials (plastic,wood), 3 sizes (small, medium, large), 4 colors (blue, green, red, yellow), and ...")
- 09:46, 24 September 2012 (diff | hist) . . (+1,135) . . 1989 AHSME Problems/Problem 13
- 13:51, 23 September 2012 (diff | hist) . . (+726) . . N 1989 AHSME Problems/Problem 25 (Created page with "== Problem == In a certain cross country meet between 2 teams of 5 runners each, a runner who finishes in the <math>n</math>th position contributes <math>n</math> to his teams s...")
- 12:35, 23 September 2012 (diff | hist) . . (+2,437) . . N 1989 AHSME Problems/Problem 23 (Created page with "==Problem== A particle moves through the first quadrant as follows. During the first minute it moves from the origin to <math>(1,0)</math>. Thereafter, it continues to follow th...")
- 11:43, 23 September 2012 (diff | hist) . . (+1,683) . . N 1989 AHSME Problems/Problem 4 (Created page with "==Problem== In the figure, <math>ABCD</math> is an isosceles trapezoid with side lengths <math>AD=BC=5</math>, <math>AB=4</math>, and <math>DC=10</math>. The point <math>C</math>...")
- 09:53, 23 September 2012 (diff | hist) . . (+916) . . N 1989 AHSME Problems/Problem 30 (Created page with "==Problem== Suppose that 7 boys and 13 girls line up in a row. Let <math>S</math> be the number of places in the row where a boy and a girl are standing next to each other. For ...")
- 09:36, 23 September 2012 (diff | hist) . . (+1,603) . . N 1989 AHSME Problems/Problem 21 (Created page with "==Problem== A square flag has a red cross of uniform width with a blue square in the center on a white background as shown. (The cross is symmetric with respect to each of the di...")
- 09:17, 23 September 2012 (diff | hist) . . (+1,711) . . N 1989 AHSME Problems/Problem 5 (Created page with "==Problem== Toothpicks of equal length are used to build a rectangular grid as shown. If the grid is 20 toothpicks high and 10 toothpicks wide, then the number of toothpicks use...")
- 08:30, 23 September 2012 (diff | hist) . . (+774) . . 1989 AHSME Problems (→Problem 23)
- 07:59, 23 September 2012 (diff | hist) . . (+681) . . 1989 AHSME Problems (→Problem 21)