| Category | Format | Size |
|---|---|---|
| People's Education Press Seventh Grade Mathematics Volume 1 | pptx | 6 MB |
"Addition and Subtraction of Integers" PPT courseware
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"Addition and Subtraction of Integers" PPT courseware
Can the formula 100t+252t be simplified? What is the basis?
On the Qinghai-Tibet Railway, there is a long frozen section between Golmud and Lhasa. The train can travel at a speed of 100 kilometers/hour on the frozen section and 120 kilometers/hour on the non-frozen section. , please answer the following questions based on these data:
On the section from Xining to Lhasa, the time it takes for the train to pass through the non-frozen soil section is 2.1 times the time it takes to pass through the frozen soil section. If it takes t hours to pass through the frozen soil section, can you list a formula containing t to express the full length of this section of railway? Is it long?
Terms that contain the same letters and have the same exponent are called homogeneous terms.
Several constant terms are also of the same type.
Items similar to Trial Test
If the monomials -2abm and anb² are similar terms, then the values of , respectively are ( )
A.m=2,n=1 B.m=2,n=0
C.m=1,n=0 D.m=1,n=1
Merger of similar items
Combining like terms in a polynomial into one term is called merging like terms.
After merging similar terms, the coefficient of the resulting term is the sum of the coefficients of all similar terms before merging, and the letter and its exponent remain unchanged.
weigh, weigh, weigh
Which of the following statements is correct ( )
A. The sum of a monomial and a monomial is a monomial
B. The sum of a monomial and a monomial is a polynomial
C. Polynomials and the sum of polynomials are polynomials
D.The sum of an integer and an integer is an integer
Keywords: courseware for addition and subtraction of integers, PPT courseware for seventh-grade mathematics volume 1 of the New People's Education Press, download of seventh-grade mathematics slide courseware, download of PPT courseware for addition and subtraction of integers, .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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