- 脑筋急转弯：会给人带来痛苦的光是什么光？ 2019-11-21Brain brain teaser : What is the light that can cause pain?
- 脑筋急转弯：什么锅不能煮饭？ 2019-11-21Brain brain teaser : what pot can not cook rice?
- 脑筋急转弯：把鸟放进锅里会变成什么？ 2019-11-21 Brain Teaser : What will happen when you put a bird in the pot?
- 脑筋急转弯：什么剑看不到？ 2019-11-21 Brain Teaser : What sword can't see?
- 脑筋急转弯：离得越远越看的清，离的越近越看不清？ 2019-11-21Brain brain teaser : the farther away you can see more clearly, the closer you can see more clearly?
- 脑筋急转弯：减肥时最容易瘦的是哪里？ 2019-11-21 Brain Teaser : Where is the easiest to lose weight when losing weight?
- 脑筋急转弯：五行之中谁的腿最长？ 2019-11-21 Brain teaser : Who has the longest leg among the five elements?
- 脑筋急转弯：夫妻吵架之后为什么老公向老婆出了道数学题？ 2019-11-21Brain brain teaser : Why did the husband come up with a math problem to his wife after a couple quarrel?
- 脑筋急转弯：为什么小明赞美老婆的时候总是闭着眼？ 2019-11-21 Brain teaser : Why does Xiao Ming always keep his eyes closed when he praises his wife?
- 脑筋急转弯：什么东西越热越爱出来？ 2019-11-21 Brain Teaser : What gets hotter the more I love it?
- 脑筋急转弯：念完博士生需要多少时间？ 2019-11-21 Brain Teaser : How long does it take to finish a PhD student?
- 脑筋急转弯：女人为什么喜欢买包？ 2019-11-21 Brain Teaser : Why do women like to buy bags?
- 脑筋急转弯：什么人隔一夜就会变老？ 2019-11-21 Brain Teaser : Who will get old overnight?
- 脑筋急转弯：什么东西越吃越感到饿？ 2019-11-21 Brain teaser : What gets hungry as you eat more ?
- 脑筋急转弯：哪个时间段做坏事最好？ 2019-11-21 Brain Teaser : Which time period is the best to do bad things?
- 脑筋急转弯：什么东西明明是圆的，好多人都说它是方的？ 2019-11-21 Brain teaser : What is obviously round, many people say it is square?
- 脑筋急转弯：为什么唱着唱着就翻了个身？ 2019-11-21 Brain Teaser : Why did I roll over while singing?
- 脑筋急转弯：谁成天乐得合不拢嘴？ 2019-11-21 Brain Teaser : Who is so happy that he can't shut up ?
- 脑筋急转弯：糖、醋、油、盐谁的工作量最少？ 2019-11-21 Brain Teaser : Whose workload is the least for sugar, vinegar, oil, and salt?
- 脑筋急转弯：鸡蛋最怕见到什么？ 2019-11-21Brain twists : What are eggs most afraid of seeing?
- 脑筋急转弯：李白的老婆和女儿叫什么名？ 2019-11-21Brain twists : What are the names of Li Bai's wife and daughter?
- 脑筋急转弯：1到100哪个自然数最有钱？ 2019-11-21 Brain Teaser : Which natural number is the richest from 1 to 100?
- 脑筋急转弯：西红柿的儿子是谁？ 2019-11-21Brain twists : Who is the son of Tomato?
- 脑筋急转弯：在我国为什么人和车要靠右走？ 2019-11-21Brain brain teaser : Why do people and cars go to the right in China?
- 脑筋急转弯：油漆工的徒弟叫什么？ 2019-11-21Brain twists : what is the apprentice's apprentice name?
- 脑筋急转弯：什么动物最大胆？ 2019-11-21 Brain Teaser : What animal is the boldest?
- 脑筋急转弯：包子最怕什么？ 2019-11-21Brain brain teaser : What is the most afraid of buns?
- 脑筋急转弯：哪种中药最倒楣？ 2019-11-21Brain brain teasers : which Chinese medicine is the most upsetting ?
- 脑筋急转弯：面包、寿司、油条谁最潮？ 2019-11-21Brain brain teasers : who is the most fashionable of bread, sushi and churros ?
- 脑筋急转弯：什么样钉子最可怕？ 2019-11-21 Brain Teaser : What kind of nail is the most terrible?
- 脑筋急转弯：自己的缺点令自己讨厌是在什么时候？ 2019-11-21 Brain Teaser : When is your shortcoming annoying?
- 脑筋急转弯：台风天气要带多少钱才能出门？ 2019-11-21 Brain Teaser : How much money does typhoon weather bring to go out?
- 脑筋急转弯：什么鱼最迟钝？ 2019-11-21 Brain Teaser : What fish is the most slow?
- 脑筋急转弯：一个人在什么时候最贫穷？ 2019-11-21 Brain Teaser : When is a person the poorest?
- 脑筋急转弯：太监最不喜欢的一首歌是什么？ 2019-11-21 Brain teaser : What is the least favorite song of eunuchs?
- 脑筋急转弯：什么季节最短？ 2019-11-21 Brain Teaser : What is the shortest season?

Recognize the graphics 1 Recognize the graphics 2 Recognize the graphics 3 Count the number 1 Count the number 2 Draw the pendulum to see how to do it Finding the change pattern of a graph by dividing the equal product of a graph

Quick calculation and clever calculation 1 Quick calculation and clever calculation 2 Counting and counting 1 Counting and counting 2 Counting and counting 3 Counting and counting 4 Filling and splitting 1 Filling and splitting 2 Grouping and grouping natural string fun questions Range and order odd and even yes and no matchstick game 1 matchstick game 2 matchstick game 3

Quick calculations and clever calculations , counts and counts 2 Understanding simple numbers Natural numbers fun questions Finding the rules 1 Finding the rules 2 Finding the rules 3 Filling the graphs and splitting Consider all possible situations 1 Consider all possible situations 2 Carefully review the questions and guess Try to draw the list

Wit and Epiphany Counting and Counting Quick Calculations and Clever Calculations Counting Shapes One- Drawing Problem Seven Bridge Problems Number Game Problem 1 Number Game Problem 2 Integer Division Enumeration Method Finding Regularity Method Reverse Reasoning Drawing Drawing Display Method Equivalent Substitution Addition and subtraction

Quick calculations and smart calculations 1 Quick calculations and smart calculations 2 Staircase problems Planting trees and square matrix problems Finding the laws of geometric figures Finding the laws of simple sequences Filling formula 1 Filling formula 2 Numeric puzzles 1 Numeric puzzles 2 Smart fillers 1 Smart fillers 2 Match Stick Game 1

Find the law from the number table Talk about the multi-stroke and application problems from the Seven Bridges of K?nigsberg, the shortest route problem, the normalization problem, the average problem , the double problem , the double problem, and the poor problem, the age problem, the chicken and rabbit problem, the problem of profit and loss. Talking from the binary of a number

Quick calculations and smart calculations 3 Quick calculations and smart calculations 4 Defining new arithmetic equal difference sequences and the magical application of the backward inversion method Stroke problems 1 Counting problems in geometry 1 Counting problems in geometry 2 Simple spelling of graphics 1 Simple spelling of 2 graphics Dot and area matrix map fill in horizontal formula 1 fill in horizontal formula 2

Multiplication principle Addition principle Permutation combination Permutation combination Permutation combination Comprehensive application stroke problem Mathematical game interesting number matrix Figure 1 Interesting number matrix Figure 2 Simple magic square and its number matrix figure Selecting lectures on math contest questions for overall planning

Dividing a number by a prime prime composite factoring the largest common divisor the least common multiple division with odd and odd numbers and even and odd parity applications with numbers that are divisible by prime numbers below 30. Traveling problems. Rowing problems. Cattle grazing problems . Equation solving problems. General Principles of Drawer Principle

Irregular figure area calculation 1 Irregular figure area calculation 2 Cleverly finding the concept and properties of the maximum surface area common divisor least common multiple congruence indefinite equation solution application problem indefinite equation integer solution clock problem mathematical game logical reasoning 1 logical reasoning 2 exclusion principle Selective lectures on recursive methods of overall planning

Engineering Problem Ratios and Proportional Fractions, Percent Applied Problems 1 Fractions, Percent Applied Problems 2 Calculation of Cubes and Cubes Stereo Figures Calculation of Rotating Body Application of Congruence Problem Solving Math in Binary Decimal Board 1 Analysis of 4 typical test questions of mathematics in chessboard

Application of column equation solutions. Rounding calculations. Shortest path problem. Wonderful grid table. Cleverly finding the matching area and logical reasoning in the graph theory of splitting the largest and smallest problem integers . From arithmetic to algebra 1 From arithmetic to algebra 2 Lecture 1 Selective Lecture 2

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Multi-person itinerary Two encounters, chasing problems Multiple encounters, chasing problems Trains crossing bridges, running water, circular runways, simple encounters, chasing problems Basic schedule problems Clock face travel walk stop stop problems Departure problems elevator travel hound chasing rabbit average speed

Dividing and Restricting Multiple Remainders of Numbers Problem of Prime Composite Decomposition Prime Factor Parity Analysis Chinese Remainder Theorem Place Value Principle Full Square Number Integer Split Carry

Five models for calculating perimeter geometry cleverly, the Pythagorean theorem , the surface area and volume of three - dimensional figures of chord diagram circles and fan-shaped three - dimensional figures, and the coloring and counting of other three-dimensional geometric problems .

Addition principle Multiplication principle Permutation combination Enumeration method Scalar method Bundle method Insertion method Correspondence method Tree diagram method Inductive method Global method Recursive method Exclusion principle Geometric figure counting

Hundreds of points applied problems engineering problems chicken and rabbits cage problems profit and loss problems age problems tree planting problems cattle grazing problems economic profit problems concentration problems ratio problems reduction problems column equation solutions application problems

Mathematical calculation formulas: the calculation of complex fractions and the splitting of integers; the method of rounding; comparison and estimation; rounding fractions; fractional fractionation; general terms; induction; definition of new operations

What is Mathematical Olympiad and Chinese Mathematical Olympiad and Xiaoshengchu Why Learn Mathematical Olympiad Cup Sai Mathematical Learning System How to Learn Mathematical Olympiad

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