初中数学解题规律、方法与技巧——代数

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初中数学解题规律、方法与技巧——代数

初中数学解题规律、方法与技巧——代数

$29.50

Product Details
产品特色
编辑推荐

本书以巧解的形式介绍了初中数学所涉及的有理数、整式、分式、不等式、

方程、函数等必考知识点。通过分类讲解,帮助学生厘清思路,提高解题的能力与技巧。 
内容简介
本书共十一章,每小节由“解题锦囊”“巧思妙解”“举一反三”三大板块构成。“解题锦囊”板块介绍了该类知识点解题思路的具体过程;“巧思妙解”板块精选典型例题,配以相应的解题方法作详细解答;“举一反三”板块要求习题与例题之间的匹配一致,重在对相应解题方法的消化与吸收。
作者简介
彭林,北京市资深数学教研员,中国教育学会《中小学数学》杂志副主编,致力于中高考复习备考研究、著述颇丰,主编编著过数十部初高中数学教辅图书。
目  录
章 有理数
节 巧用代数和
第二节 巧用分配律
第三节 巧选运算顺序
第四节 巧凑整
第五节 巧添(去)括号
第六节 巧裂项
第七节 巧比有理数大小
第八节 巧用倒写相加法求值
第九节 巧用错项相减法求值
第二章 整式
节 巧用字母表示数
第二节 巧用代数思想
第三节 巧去括号
前  言
学数学,离不开解题,尽管解题本身不是学习数学的终目的,但它是学习数学、学会思考、培养数学素养的一个重要手段.
一道数学难题,其他同学百思不得其解,到了你的手里,不一会儿就解出来了.同学们赞叹你思路巧!
其他同学添加三条辅助线才能证出来的几何题,你只要作一条辅助线就完美解出,解题过程也比其他同学轻松.同学们羡慕你方法巧!
同样的思路,同样的方法,你用的公式、定理比其他同学恰当,你不写可有可无的式子,不计算多余的量,你能把解题过程锤炼得特别紧凑.同学们佩服你掌握了很多有用的技巧!
巧解的本领从哪里来?靠学,靠练,见多识广,熟能生巧.
在线试读

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

产品特色
编辑推荐

本书以巧解的形式介绍了初中数学所涉及的有理数、整式、分式、不等式、

方程、函数等必考知识点。通过分类讲解,帮助学生厘清思路,提高解题的能力与技巧。 
内容简介
本书共十一章,每小节由“解题锦囊”“巧思妙解”“举一反三”三大板块构成。“解题锦囊”板块介绍了该类知识点解题思路的具体过程;“巧思妙解”板块精选典型例题,配以相应的解题方法作详细解答;“举一反三”板块要求习题与例题之间的匹配一致,重在对相应解题方法的消化与吸收。
作者简介
彭林,北京市资深数学教研员,中国教育学会《中小学数学》杂志副主编,致力于中高考复习备考研究、著述颇丰,主编编著过数十部初高中数学教辅图书。
目  录
章 有理数
节 巧用代数和
第二节 巧用分配律
第三节 巧选运算顺序
第四节 巧凑整
第五节 巧添(去)括号
第六节 巧裂项
第七节 巧比有理数大小
第八节 巧用倒写相加法求值
第九节 巧用错项相减法求值
第二章 整式
节 巧用字母表示数
第二节 巧用代数思想
第三节 巧去括号
前  言
学数学,离不开解题,尽管解题本身不是学习数学的终目的,但它是学习数学、学会思考、培养数学素养的一个重要手段.
一道数学难题,其他同学百思不得其解,到了你的手里,不一会儿就解出来了.同学们赞叹你思路巧!
其他同学添加三条辅助线才能证出来的几何题,你只要作一条辅助线就完美解出,解题过程也比其他同学轻松.同学们羡慕你方法巧!
同样的思路,同样的方法,你用的公式、定理比其他同学恰当,你不写可有可无的式子,不计算多余的量,你能把解题过程锤炼得特别紧凑.同学们佩服你掌握了很多有用的技巧!
巧解的本领从哪里来?靠学,靠练,见多识广,熟能生巧.
在线试读

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

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