美国数学竞赛AMC8

排列组合(permutation and combination)

1 Quiz

小测验-排列组合1

尺规作图Compass-and-straightedge

8 Topics

尺规作图-正三边形

尺规作图-正四边形

尺规作图-正五边形

尺规作图-正六边形

尺规作图-正七边形（近似）

尺规作图-正八边形

尺规作图-正九边形（近似）

三角形内心、外心、重心、垂心、旁心、费马点

数论(number theory)

1 Topic | 2 Quizzes

数论一小测验

数字填空小测验

Perimeter and Area 周长与面积

5 Topics

Basic Formulas for Perimeters and Area 周长与面积的基本公式

the song from Pi

3 Topics

平行四边形

factorization by cross method

因式分解(Divisibility)

1 Topic | 1 Quiz

整式乘除小测验

平面直角坐标系

1 Quiz

直角坐标系-小测验

Operation with Fractions

Word Problems Related to Percentage

Transformations

consecutive integers

operations with Decimals

Set and Venn Diagrams

counting Techniques

Geometric Visualization

Ratio,Rate and Proportion

1 Quiz

Least common Multiple and Greatest Common Factor

solving Equations

Special Symbols and Operations

Sequences and Series

1 of 2

the song from Pi

美国数学竞赛AMC8 Perimeter and Area 周长与面积 the song from Pi

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