"Multiplication of Integers" PPT courseware

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"Multiplication of Integers" PPT courseware

Part One: Review & Thoughts

The basis for multiplying a monomial by a polynomial is the distributive law of multiplication to addition;

How to multiply monomials and polynomials?

① Multiply each term of the polynomial by a monomial.

② Add the resulting products.

What should we pay attention to when multiplying monomials and polynomials?

① No missing multiplications: that is, the monomial must be multiplied by every term of the polynomial.

② Pay attention to the symbols when removing brackets.

Multiplication of integers PPT, Part 2: Classroom exercises

First, expand the rectangular fish pond with length m and width n so that the length increases by b and the width increases by a. Find the area after expansion.

1. There are several ways to express the expanded fish pond area. Write them out.

(1) (m+b)(n+a) (2) m(n+a)+b(n+a)

(3)n(m+b)+a(m+b) (4)mn+ma+bn+ba

The four methods all represent the fish pond area, and we can get:

(m+b)(n+a)=m(n+a)+b(n+a)=

mn+ma+bn+ba

Think about how multiplying a polynomial by a polynomial above works?

(1) First convert into a monomial multiplied by a polynomial

(2) Then operate according to the operation rule of multiplying the monomial by the polynomial.

Multiplication of integers PPT, the third part: analysis of examples

[Example 1] Calculation: (1)(1−x)(0.6−x); (2)(2x + y)(x−y).

Note: When multiplying two terms, the sign must be determined first.

The sign of the resulting product is determined by the signs of these two terms:

Negative makes positive

One positive and one negative result in a negative.

The final result is to merge similar items.

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"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) ....

"Multiplication of Integers" Operations of Integers PPT Courseware 3:

"Multiplication of Integers" Operations of Integers PPT courseware 3 Teaching target knowledge and ability 1. Multiplication rules of integers; 2. Multiplication of monomials and polynomials; 3. Multiplication of polynomials and polynomials. Process and method 1. Experience and explore the multiplication of integers The process of operational properties..

"Multiplication of Integers" Operations of Integers PPT Courseware 2:

"Multiplication of Integers" Operations of Integers PPT Courseware 2 Objective Guide 1. Master the operational properties of positive integer powers, and be able to apply the properties to perform operations skillfully. 2. Master the operation rules of integer multiplication and be able to use the rules to perform simple integer multiplication operations. 3. Ability to move flexibly...

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Update Time: 2024-11-15

This template belongs to Mathematics courseware Hebei Education Edition Seventh Grade Mathematics Volume 2 industry PPT template

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