Current location - Training Enrollment Network - Mathematics courses - Find the answer to the first volume of the seventh grade Olympic mathematics handout
Find the answer to the first volume of the seventh grade Olympic mathematics handout
Chapter 65438 +0 From natural number to rational number 5

Section 65438 +0 rational number, axis number and reciprocal 7

Section 2 Comparison of Absolute Value and Rational Number 15

The second chapter rational number operation 23

Section 65438 +0 rational number addition and subtraction 25

Section 2 Multiplication and Division of Rational Numbers 33

Section 3 Rational Number Multiplication and Mixed Operation 4 1

Section 4 Approximation, Use and Review of Calculator 49

Chapter III Real Numbers 57

Section 65438 +0 Real Numbers and Related Concepts 59

Real number operation in the second quarter 67

The fourth chapter algebraic formula 75

1 algebraic part, algebraic expression 77

Addition and subtraction of algebraic expressions in the second quarter 85

The fifth chapter unary linear equation 93

Section 65438 +0 Solving the One-variable Linear Equation 95

Section 2 Application of One-variable Linear Equation 103

Chapter VI Data and Charts 1 1 1

Section statistics 1, strip statistics and broken line statistics 1 13

Section 2 Industry Statistics and Review 12 1

Chapter 7: Preliminary knowledge of graphics 129

Line segment 1, ray and straight line 13 1

Measurement, size comparison and surplus angle of the second pitch angle 139

Section 3 Intersecting Lines and Parallel Lines 147

Chapter VIII General Comment 155

Refer to the answer 17 1 for some questions.

A new round of junior high school curriculum reform is in full swing throughout the country. According to the curriculum standards,

All kinds of teaching materials that must be prepared have brought us new educational ideas and breath. for

Let the soul of the new curriculum "promote the development of every student" be implemented and help students improve their English.

Learning efficiency is high, so we compiled this set of junior high school "Olympic Mathematics Lecture" series.

This book is related to Experimental Teaching of Compulsory Education Curriculum Standards published by Zhejiang Education Publishing House.

The number of books should be matched and synchronized, and each chapter should have "knowledge network", "key and difficult points" and "guidance on learning methods"

Column, which lists the main contents of this chapter in the form of network respectively; Analyze the importance of this chapter.

Points, difficulties, key points and difficulties; Analyze, answer and explore some typical cases.

Each book has 18 topics, based on the number of study weeks of weekend training each semester.

This topic is divided into the following four levels:

Basic training is a basic subject, which embodies the basic requirements for the relevant content of teaching materials.

"Ability improvement" is a comprehensive problem, and competence can be improved through training.

We have expanded our strength.

[Aiming at the Senior High School Entrance Examination] is a senior high school entrance examination question, which was selected synchronously from all parts of the country in the past year.

Accept the senior high school entrance examination training early.

"Gold medal" is an inquiry question, which is selected from domestic and international mathematics competitions and senior high school entrance examinations in recent years.

Exploratory topics are more difficult.

The topic is set in different levels, which shows that different people have different development in mathematics. Each level

The second time appeared in the form of loose-leaf and single "Zhang", which reflected the simplicity, beauty and symmetry of mathematics.

According to your own situation, it can be used for weekend training.

Editor-in-chief of this volume: Liu Zhijian, Fang, Luo Daming, Wang Juqing,.

Yan, Jin, and people.

Due to the rush of time and the author's understanding of the new curriculum needs to be further improved, which

There will inevitably be some shortcomings when writing this book. Please correct me.

Writing group

May 2008

cataloguing in publication data in the book

Lecture notes on Olympic mathematics. Seventh grade. Volume I/edited by Ding Baorong. —— Hangzhou: Zhejiang University Press, 2008.5.

ISBN 978-7-308-05959-6

International labor organization. D ... III. Mathematics-Junior High School-Teaching Reference Materials

Ⅳ? G634.603

China Map Library CIP Data Core (2008) No.068377

Lecture notes on Olympic mathematics (the first volume of grade seven)

Editor-in-Chief Ding Baorong

Editor Huang

Liu Yiqun cover design

Publish and distribute Zhejiang University Press

(No.Tianmushan Road 148, Hangzhou, 3 10028)

(E-mail :zupress@mail.hz.zj.cn)

(Website:)

Tel: 057 1-88925592, 88273066 (fax)

Typesetting Hangzhou desert photo typesetting printing co., ltd.

Dazhe Tongli education color printing co., ltd

Folio 787mm×1092mm116

Stamp 1 1.75

30,000 words

Version printing time June 2008 Version 1 was printed for the second time in July 2008.

ISBN 978-7-308-05959-6

Pricing 16.50 yuan.

All rights reserved and reproduced must be investigated. Printing errors should be replaced.

The mail order number of the distribution department of Zhejiang University Press is (057 1)88072522.

This is just a catalogue.