2011AMC12B真题及答案解析
2011 AMC12B 真题 答案解析请参考文末 Problem 1 What is Problem 2 Josanna's test scores to date are , , , , and . Her goal is to raise her test average at least points with her next test. What...
2011AMC12A真题及答案解析
2011 AMC12 A 真题 答案解析请参考文末 Problem 1 A cell phone plan costs dollars each month, plus cents per text message sent, plus cents for each minute used over hours. In January Michelle sent tex...
2012AMC12B真题及答案解析
2012 AMC12B 真题 答案解析请参考文末 Problem 1 Each third-grade classroom at Pearl Creek Elementary has 18 students and 2 pet rabbits. How many more students than rabbits are there in all 4 of the t...
2012AMC12A真题及答案解析
2012 AMC12A 真题 答案解析请参考文末 Problem 1 A bug crawls along a number line, starting at . It crawls to , then turns around and crawls to . How many units does the bug crawl altogether? P...
2013AMC12B真题及答案解析
2013 AMC12B 真题 答案解析请参考文末 Problem 1 On a particular January day, the high temperature in Lincoln, Nebraska, was degrees higher than the low temperature, and the average of the high and lo...
2013AMC12A真题及答案解析
2013 AMC12A 真题 答案解析请参考文末 Problem 1 Square has side length . Point is on , and the area of is . What is ? Problem 2 A softball team played ten games, scoring , and runs. They lost by one ...
2014AMC12B真题及答案解析
2014 AMC12B 真题 答案解析请参考文末 Problem 1 Leah has coins, all of which are pennies and nickels. If she had one more nickel than she has now, then she would have the same number of pennie...
2014AMC12A真题及答案解析
2014 AMC12A 真题 答案解析请参考文末 Problem 1 What is Problem 2 At the theater children get in for half price. The price for adult tickets and child tickets is . How much would adult tickets...
2015AMC12B真题及答案解析
2015 AMC12B 真题 答案解析请参考文末 Problem 1 What is the value of ? Problem 2 Marie does three equally time-consuming tasks in a row without taking breaks. She begins the first task at 1:0...
2015AMC12A真题及答案解析
2015 AMC12A 真题 答案解析请参考文末 Problem 1 What is the value of Problem 2 Two of the three sides of a triangle are 20 and 15. Which of the following numbers is not a possible perimeter of...
2016AMC12B真题及答案解析
2016 AMC12B 真题 答案解析请参考文末 Problem 1 What is the value of when ? Problem 2 The harmonic mean of two numbers can be calculated as twice their product divided by their sum. The harmon...
2016AMC12A真题及答案解析
2016 AMC12A 真题 答案解析请参考文末 Problem 1 What is the value of ? Problem 2 For what value of does ? Problem 3 The remainder can be defined for all real numbers and with bywhere de...
