"Integers" PPT courseware for addition and subtraction of integers

Description

"Integers" PPT courseware for addition and subtraction of integers

The formula for the product of numbers or 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.

fill in the blank

1. 15 times a is _______, and the number 10 less than 2 times x is _______;

2. The reciprocal of a is _______, and the reciprocal of a(a≠0) is _______;

3. It costs x yuan to buy a basketball, y yuan to buy a volleyball, and z yuan to buy a football. A total of ( ) yuan is needed to buy 3 basketballs, 5 volleyballs, and 2 footballs;

4. As shown in the figure, the area of ​​the triangle ruler is _______;

5. Xiao Cong’s home is s kilometers away from the school. Xiao Cong rides to school. If he travels 10 kilometers per hour, it will take _______ hours; if he travels v kilometers per hour, it will take _______ hours;

6. The picture shows the building plan of a residential area. The building area of ​​this residence is ( ) square meters.

Definition: The sum of several monomials is called a polynomial.

In a polynomial, each monomial is called a term of the polynomial.

Terms without letters are called constant terms.

Summary: What new gains and experiences have you gained from studying this lesson?

1. Definition of polynomial: The sum of several monomials is called a polynomial.

In a polynomial, each monomial is called a term of the polynomial. Among them, terms without letters are called constant terms.

In a polynomial, the degree of the term with the highest degree is called the degree of the polynomial.

2. Monomials and polynomials are collectively called integers.

Keywords: courseware for adding and subtracting integers, courseware for integers, PPT courseware for seventh-grade mathematics in the first volume of the New People's Education Press, downloadable seventh-grade mathematics slideshow courseware, downloading PPT courseware for adding and subtracting integers, downloading PPT courseware for integers, .ppt format

For more information about the PPT courseware "Addition and Subtraction of Integers", please click the "Addition and Subtraction of Integers ppt Integers 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..

File Info

Update Time: 2024-06-28

This template belongs to Mathematics courseware People's Education Press Seventh Grade Mathematics Volume 1 industry PPT template

Preview