在国内，AMC8竞赛得到了越来越多家庭的认可，甚至填补了小学奥数的空白。参加AMC8竞赛不仅能够帮助学生更轻松地被上海“三公”认定，还是进入英才班等培优班级的重要砝码。
AMC8竞赛规则
- AMC8竞赛是一场单选题考试，共有25道题目，每题有5个选项。
- 考试时间为40分钟。
- 每题正确得1分，不答或答错不扣分。总分为25分。
- 试卷为中英双语。
- 奖项分为满分奖、前1%、前5%和荣誉奖。
AMC8竞赛高频知识点
Algebra (代数高频考点)：比与比例，分数，百分比；方程，包括应用题；数列；
Geometry(几何高频考点)：三角形相似性，勾股定理；圆形及其位置关系；四边形及其几何性质；
Number Theorem(数论高频考点):质数，包括质因数分解;整数，数位问题;整除性
Combinatorics(组合高频考点):计数原理，排列与组合;概率，核心是计算;
AMC8竞赛拿分技巧
快速阅读题目：在AMC8竞赛中，时间是非常宝贵的，因此在阅读题目时要快速抓住题中和解题有关的核心词汇，对于不认识的词，可以略过，只要不影响解题即可。
做好前15题：AMC8竞赛的题目按照从难到易的顺序排布，因此要保证在前15道题中不失分，确保拿满15分，这样才有希望冲奖。
熟练做选择题：在AMC8竞赛中，有很多选择题，熟练掌握解题技巧和答题方法对于拿分非常重要。熟练掌握解答选择题的技巧可以帮助学生在有限的时间内更准确地完成题目。
熟悉常见题型：AMC8竞赛常见的题型包括几何、代数、概率等，熟悉并掌握这些常见题型的解题方法和技巧可以帮助学生更快地解答题目，提高做题效率。
划重点：在做题过程中，遇到复杂题目或者不确定的题目，可以先划重点，留出时间后再回头仔细思考和解答，确保不因为一道难题影响整体的答题进度。
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kilometer walk, and then finishes at the coffee shop. One day, she walks at 
kilometers per hour, and the walk takes 
hours, including 
minutes at the coffee shop. Another morning, she walks at 
kilometers per hour, and the walk takes 
hours and 
minutes, including 
kilometers per hour, how many minutes will the walk take, including the 
and 
with 
satisfy 
What is the value of 
?
tokens lies before them. The players take turns with Alice going first. On each turn, the player removes 
token or 
such that there is a strategy that guarantees that Bob wins, regardless of Alice’s moves.
She wins a prize if at least two of her numbers were 
where 
and 
.
and 
are drawn such that 
are collinear. Also, 
all lie on a circle. If 
and 
what is the length of 
?![[asy] import graph; unitsize(0.1cm); pair A = (0,0);pair B = (70,0);pair C = (70,16);pair D = (0,16);pair E = (3,16);pair F = (90,16);pair G = (90,33);pair H = (3,33); dot(A^^B^^C^^D^^E^^F^^G^^H); label("$A$", A, S);label("$B$", B, S);label("$C$", C, N);label("$D$", D, N);label("$E$", E, S);label("$F$", F, S);label("$G$", G, N);label("$H$", H, N); draw(E--D--A--B--C--E--H--G--F--C); [/asy]](https://latex.artofproblemsolving.com/1/2/f/12f0a4224f27ffa406ded2c01cfd349ecd0c04de.png)
that follow the lines from the lower left corner to the upper right corner on an 
grid. Find the number of such paths that change direction exactly four times, as in the examples shown below.![[asy] size(7.5cm); usepackage("tikz");label("\begin{tikzpicture}[scale=.4]\draw(0,0)grid(8,8);\draw[line width=2,red](0,0)--(2,0)--(2,3)--(5,3)--(5,8)--(8,8);\end{tikzpicture}",origin); label("\begin{tikzpicture}[scale=.4]\draw(0,0)grid(8,8);\draw[line width=2,red](0,0)--(0,3)--(3,3)--(3,5)--(8,5)--(8,8);\end{tikzpicture}",E); [/asy]](https://latex.artofproblemsolving.com/f/a/2/fa2be3ff5b03203d7779a7a359fa05e2bf9d0c55.png)
