| Category | Format | Size |
|---|---|---|
| People's Education Press Seventh Grade Mathematics Volume 1 | pptx | 6 MB |
"Integral Forms" Addition and Subtraction of Integral Forms PPT Courseware 4
Description
"Integral Forms" Addition and Subtraction of Integral Forms PPT Courseware 4
Reflection
Fill in the blanks first, and then please tell us the meaning of the operation of the formula you listed.
1. The perimeter of a square with side length x is __________.
2. The speed of a car is v kilometers/hour, and the distance traveled by it in t hours is __________ kilometers.
3. As shown in the figure, the surface area of the cube is __________ and its volume is __________.
4. Suppose n represents a number, then its opposite is __________.
The algebraic expression composed of the product of numbers and letters or letters and letters is called a monomial
The numerical factors in a monomial are called the coefficients of the monomial.
The sum of the exponents of all the letters in a monomial is called the degree of the monomial.
When studying the coefficient problem of monomial, we should pay attention to the following points:
1. When the coefficient of the monomial is 1 or -1, "1" is usually omitted.
2. Pi is a constant.
3. When the coefficient of a monomial is a mixed number, it is usually written as an improper fraction.
4. The coefficient of a monomial should include the property symbol in front of it.
The window of Xiao Ming's room is as shown in the picture, in which the upper decoration consists of two quarter circles and a semicircle (their radii are the same).
(1) How much area does the decoration occupy?
(2) What is the area of the window that allows sunlight to enter?
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For more information about the PPT courseware "Addition and Subtraction of Integers", please click the "Addition and Subtraction of Integers ppt Integer ppt" tab.
"Multiplication of Integers" PPT courseware:
"Multiplication of Integers" PPT Courseware Part One: Review and Thinking The basis for multiplying a monomial by a polynomial is the distributive law of multiplication to addition; how to perform multiplication operations of monomials and polynomials? ① Multiply each term of the polynomial by a monomial. ② Then...
"Multiplication of Integers" PPT:
"Multiplication of Integers" PPT Part One: Review Introduction: 1. Multiplication of powers with the same base: am.an=am+n (m,n are both integers) 2. Power of powers: (am)n=amn ( m, n are both positive integers) 3. The power of the product: (ab)n=an.bn (n is a positive integer) ....
"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..
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Update Time: 2024-06-26
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