| Category | Format | Size |
|---|---|---|
| Qingdao Edition Seventh Grade Mathematics Volume 1 | pptx | 6 MB |
"Addition and Subtraction of Integers" PPT Courseware 5
Description
"Addition and Subtraction of Integers" PPT Courseware 5
Addition and subtraction of integers
Xiaoliang and Xiaoying went to Hope Primary School to visit their classmates.
Xiaoliang bought 10 pens and 5 dictionaries as gifts.
Xiaoying bought 6 pens, 4 dictionaries and 2 pencil boxes as gifts.
The unit prices of pens, dictionaries, and pencil cases are a yuan, b yuan, and c yuan respectively.
Please calculate
(1) Xiaoliang spent (10a+5b) yuan
(2) Xiaoying spent (6a+4b+2c) yuan
(3) Xiaoliang and Xiaoying spent a total of [(10a+5b)]+(6a+4b+2c) yuan
(4) Xiaoliang spends more than Xiaoying by [(10a+5b)]-(6a+4b+2c) yuan
Steps for adding and subtracting integers:
(1) Remove brackets
(2) Merge similar items
Column calculation
(1) Find the sum of x2-2y2 and 3x+2y2
(2) Find the difference between 3a2+2b2 minus 5a2-2b2+1
(3) It is known that the sum of two integers is x3y+x2y-2z, and one of the integers is 2x3y+z. Find the other integer.
Simplification
(2b-3c)+(5a-3b+2c)
(9a2-6ab-b2)-(4a2-ab)
(a2+2a+1)-(-2a-3-4a2)
3+[3a-2(a-1)] where a=-5
9a-{3a-[4a-(7a-3)]} where a=-1
Operation
Exercise 6.4 P147
Required questions (A, B): Question 1, Question 2
Optional questions (B): 4 questions
Keywords: Teaching courseware for adding and subtracting integers, Qingdao edition seventh grade mathematics volume PPT courseware download, seventh grade mathematics slide courseware download, adding and subtracting integers PPT courseware download, .PPT format;
For more information about the PPT courseware "Addition and Subtraction of Integers", please click on the Addition and Subtraction of Integers ppt tab.
"Addition and Subtraction of Integers" PPT courseware 8:
"Addition and Subtraction of Integers" PPT Courseware 8 Activity 1: Xiaohong and Xiaoming each wrote an expression on their own pieces of paper. Xiaohong: 2x-3y Xiaoming: 5x+4y Question: (1) Xiaohong said, find out Their sum. can you help her? (2) Xiao Ming said, find 5x+4y and 2x-3..
"Addition and Subtraction of Integers" PPT Courseware 7:
"Addition and Subtraction of Integers" PPT Courseware 7 The meaning of addition and subtraction of integers is the algebraic operation of finding the sum or difference of several integers 1. Find the sum of the monomials 2x2y3, -4x2y3 and -3x2y3. Solution: 2x2y3+(-4x2y3)+(-3x2y3) = 2x2y3-4x2y3-3x2y3) = -5x2y3 ..
"Addition and Subtraction of Integers" PPT Courseware 6:
"Adding and Subtracting Integers" PPT Courseware 6 Learning Objectives 1. Be able to skillfully and correctly use the rules of merging similar terms and removing parentheses to add and subtract integers. 2. Be able to use the operations of integers to simplify polynomials and evaluate them. 3. In the addition and subtraction operations of integers, comprehend and transform thoughts, and experience...
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Update Time: 2024-07-04
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