| Category | Format | Size |
|---|---|---|
| Beijing Normal University seventh grade mathematics volume 2 | pptx | 6 MB |
"Division of Powers with the Same Base" Operation of Integers PPT Courseware 2
Description
"Division of Powers with the Same Base" Operation of Integers PPT Courseware 2
Knowledge review
am÷an=am–n (a≠0, m and n are both positive integers, and m>n)
Divide powers with the same base, base____, exponent___.
calculate:
(1) 279÷97÷3
(2) b2m÷bm-1 (m is an integer greater than 1)
(3) (-mn)9÷(mn)4
(4) (a-b)6÷(b-a)3÷(a-b)2
Cooperative learning
(1) 53÷53= 1
(2) (-3)3÷(-3)3= 1
(3) a2÷a2= 1 (a≠0)
Discuss the following questions:
(1) In order for 53÷53=53-3 to be established, what do you think should be stipulated as 50? What about 80?
(2) In order for (-5)3÷(-5)3=(-5)3-3 to be established, what do you think 50 should be equal to? What about (-8)0?
(3) Can the zero power of any number be equal to 1?
Judgment: Are the following calculations correct? Why? Please correct me if I am wrong.
(1) (-0.001) 0= -1
(2)(-1)-1=1
(3) 8-1=-8
(4) ap×a-p=1(a≠0)
practice
Express the values of each of the following negative integer powers raised as fractions or integers:
(1) 100-2 (2)(-1)-3 (3) 7-2 (4) (-0.1)-2
calculate:
(1)22-2-2+(-2)-2
(2)5-16×(-2)3
(3)4-(-2)-2-32÷(-3)0
(4)10-2×100+103÷105
(5)(103)2×106÷(104)3
summary
Division algorithm for powers with the same base: am÷an=am–n
Regulation: a0 =1(a≠0)
a-n=1/an a≠0
Keywords: teaching courseware for operation of integers, teaching courseware for division of powers with the same base, Beijing Normal University edition seventh grade mathematics volume 2 PPT courseware, download of seventh grade mathematics slide courseware, download of PPT courseware for operation of integers, division of powers with the same base PPT Courseware download, .ppt format
For more information about the PPT courseware "Operations of Division of Integers with Powers of the Same Base", please click the "Operations of Division of Integers with Powers of the Same Base ppt" ppt tag.
"Division of Powers with the Same Base" PPT download:
"Division of powers with the same base" PPT download Part 1 content: Knowledge review 1. Division of powers with the same base, base ____, exponent ___. 2. aman=____ (a0, m, n are all positive integers, and mn) 3 .Calculation: (1) 279973 (2) b2mbm-1 (m is an integer greater than 1)..
"Division of powers with the same base" PPT:
"Division of Powers with the Same Base" PPT Part One: Preschool Preparation The intensity of the sound when a person speaks is usually 105, and the intensity of the sound when a motorcycle is driving is 1011. The intensity of the sound when a motorcycle is driving is the intensity of the sound when a person speaks. times? Solution: 10111..
"Division of powers with the same base" PPT courseware 2:
"Division of Powers with the Same Base" PPT Courseware 2 Learning Objectives 1. Through the operational properties of multiplication of powers with the same base, derive the operational properties of division of powers with the same base. 2. Be able to use the operational properties of division of powers with the same base to perform calculations. 3. Be able to utilize the operational properties of exponents with the same base..
File Info
Update Time: 2024-07-29
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