"Cube Root" Real Number PPT Free Courseware

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"Cube Root" Real Number PPT Free Courseware

Part One Content: Basic Knowledge Key Points

Knowledge point 1 The concept of cube root

The cube root of 1.-8 is (A)

A.-2 B.-2√2

C.-√2 D.-4

2. Which of the following statements is correct (D)

A. The cube root is itself a number that can only be 0 and 1

B. If a number has a cube root, then the number must also have a square root.

C.The square root of 16 is 4

D.-2 is a square root of 4

3. If the square root of a real number is equal to its cube root, then the number is (A)

A.0 B.Positive real numbers

C.0 and 1 D.1

Cube Root PPT, Part 2: Improvement of Comprehensive Ability

7. Which of the following formulas is correct (C)

A.√( - 7) ^2 )=-7 B.√49=±7

C.∛( -7 )^3 )=-7 D.( -√7 )2=-7

8. (Textbook Motif Variation) A cube of wood with a volume of 1000 cm3 is sawn into 27 small cubes of the same size. Then the edge length of each small cube is (A)

A.10/3 cm B.10/9 cm

C.1000/27 cm D.10 cm

The cube root of 9.5x+9 is 4, then the square root of 2x+3 is ±5.

10. If the value of ∛((x"-" 6)^3 ) is a negative number, then √("( " 6"-" x〖" )" 〗^2 )=　6-x　.

11. If a is the arithmetic square root of 9, and the arithmetic square root of b is 4, then a+b=19.

12. It is known that 27(x+3)3+125=0, find the value of x.

13. Given that the square root of x-2 is ±2 and the cube root of 2x+y+7 is 3, find the square root of x2+y2.

Cube Root PPT, Part 3: Expansion and Breakthrough Exploration

14. If the edge length of a cube is doubled, how many times its original volume will be? If the edge length is tripled, how many times its original volume will be? And so on, the edge length becomes If it is 10 times its original size, how many times will its volume become? And its edge length will become n times its original size?

Solution: If the edge length of a cube becomes twice the original, its volume becomes 23=8 times; if the edge length becomes 3 times the original, its volume becomes 33=27 times. And so on. , the edge length becomes 10 times the original, and its volume becomes 103=1000 times the original; the edge length becomes n times the original, and its volume becomes n3 times the original.

Keywords: Beijing Normal University edition eighth grade mathematics PPT courseware free download, cube root PPT download, real number PPT download, .PPT format;

For more information about the "Cube Roots of Real Numbers" PPT courseware, please click on the Real Numbers PPT Cube Roots PPT tab.

"Cube Root" Real Number PPT Free Download:

"Cube Root" Real Number PPT Free Download Part One: Review (1) What is the square root of a number a? How to express the square root of the number a (a0) symbolically? (2) How many square roots are there of positive numbers? What is the relationship between them? Do negative numbers have square roots?

"Cube Root" real numbers PPT courseware download:

"Cube Root" Real Numbers PPT Courseware Download Part One: Teaching Objectives Understand the concept of cube roots. Can find the cube roots of some numbers. Teaching focus: Guide students to learn the concept and method of finding cube roots by analogy with square roots. Teaching Difficulties: The difference between square roots and cube roots..

"Cube Root" real number PPT teaching courseware:

"Cube Root" Real Number PPT Teaching Courseware Part One: Situation Introduction 1. What is a cube root? If the cube of a number is equal to a, then the number is called the cube root or cubic root of a. What happens to the cube roots of positive numbers, 0, and negative numbers? The cube root of a positive number..

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Update Time: 2024-07-01

This template belongs to Mathematics courseware Beijing Normal University Edition Eighth Grade Mathematics Volume 1 industry PPT template

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