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Beijing Normal University Edition Eighth Grade Mathematics Volume 1
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!["Using Letters to Represent Numbers" PPT](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/0bbd82fe-b784-4396-8708-4a01c4811a0f.webp)
Category | Format | Size |
---|---|---|
Hebei Education Edition Fourth Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Using Letters to Represent Numbers" PPT
Part One: Scenario Introduction
1 frog 1 mouth
2 frogs 2 mouths
3 frogs with 3 mouths
N frogs ( ) open their mouths
Example 1. Use a formula containing letters to express the relationship between the ages of Yaya and Niuniu.
When Niuniu was 1 year old, Yaya was (1+3) years old;
When Niuniu was 2 years old, Yaya was ( ) years old;
When Niuniu was 3 years old, Yaya was ( ) years old;
When Niuniu was 9 years old, Yaya was ( ) years old;
When Niuniu was 10 years old, Yaya was ( ) years old;
According to the relationship between the ages of Yaya and Niuniu, as long as you know Niuniu's age, you can calculate Yaya's age.
Niuniu is 18 years old: a=18
Yaya’s age: a+3=18+3=21
Niuniu is 23 years old: a=23
Yaya’s age: a+3=23+3=26
Use letters to represent numbers PPT, part 2: give it a try
(1) It costs ( ) yuan to buy 1 schoolbag and 1 book.
(2) It costs ( ) yuan to buy 2 schoolbags and 2 books in total.
(3) It costs ( ) yuan to buy 3 schoolbags and 1 book.
Keywords: Hebei Education Edition fourth-grade mathematics PPT courseware for the second volume free download, using letters to represent numbers PPT download, .PPT format;
For more information about the PPT courseware "Using Letters to Represent Numbers", please click the Use Letters to Represent Numbers ppt tag.
"Review of Representing Numbers with Letters" PPT:
"Review of Using Letters to Represent Numbers" PPT Part One: Teaching Objectives 1. Review and organize the knowledge about using letters to express numbers in primary school. Through review, students can use letters to represent numbers in specific situations. Ability to use letters to represent operational rules and calculations..
"Using Letters to Represent Numbers" PPT Courseware 7:
"Representing Numbers with Letters" PPT Courseware 7 The unit price of exercise books is a yuan. How to express the total price of 100 exercise books? Because the total price of exercise books = the number of exercise books x unit price, the total price of 100 exercise books is 100xa yuan is 100a yuan. Numbers are related to the letters that represent numbers...
"Using Letters to Represent Numbers" PPT Courseware 6:
"Representing Numbers with Letters" PPT Courseware 6 Scenario 1 (1) Xiaojun and Xiaoming walked towards each other from AB at the same time. What does AB mean? Letters can represent: place names (2) Ah P and little D watch "The Story of Ah Q" P D What does Q mean? Letters can represent: person's name (3)..
File Info
Update Time: 2024-09-05
This template belongs to Mathematics courseware Hebei Education Edition Fourth Grade Mathematics Volume 2 industry PPT template
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!["Using Letters to Represent Numbers" PPT](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/d0ec7110-0f4f-4af4-b409-19e2131024d5.webp)