"Square Root" Real Numbers PPT (Lesson 1)

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"Square Root" Real Numbers PPT (Lesson 1)

Part One Content: Basic Knowledge Key Points

Knowledge point 1: The concept of arithmetic square roots

The arithmetic square root of 1.16 is (A)

A.4 B.-4 C.±4 D.2

Knowledge point 2: Practical application of square roots of arithmetic

3. If the area of ​​a square is (a2+1) m2, then the side length of the square is (D)

A.a+1 B.±( a+1 )

C.±√(a^2+1) D.√(a^2+1)

4. There is a numerical converter. The program is as shown in the figure. When the input x value is 25, the output y value is (C)

A.5 B.-5 C.√5 D.-√5

Square Root PPT, Part 2: Improvement of Comprehensive Ability

6. If the arithmetic square root of the absolute value of a number is equal to itself, then the number is (B)

A.±1 B.0 or 1

C.-1 or 0 D.0 or ±1

7. If the positive number x+2 is the arithmetic square root of 100, then the value of x is (C)

A.100 B.98

C.8 D.0.98

8.√("( -" 2〖" )" 〗^2) The correct result of simplification is (A)

A.2 B.-2 C.±2 D.√2/2

Square root PPT, the third part: Expansion, exploration and breakthrough

14. Does x2-x+1/4 have an arithmetic square root? If so, please write down its arithmetic square root; if not, please explain the reason.

Solution:∵x2-x+1/4=(x- 1/2)^2,

∴x2-x+1/4 has an arithmetic square root, which is |x- 1/2|.

Keywords: Free download of Beijing Normal University version of eighth grade mathematics PPT courseware for volume 1, square root PPT download, real number PPT download, .PPT format;

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

"Square Root" Real Numbers PPT (Lesson 2):

"Square Roots" Real Numbers PPT (Lesson 2) Part One Content: Knowledge Points Basic Knowledge Point 1 The Concept of Square Roots The square root of 1.25 is (A) A.5 B.5 C.5 D.-5 2. (Adapted) If a The square root of a number is equal to itself, then the number is (A) A.0 B...

"Square Root" Real Number PPT:

"Square Roots" Real Numbers PPT Part One Content: Learning Objectives 1. Understand the concept of arithmetic square roots, and be able to use the root sign to represent the arithmetic square root of a positive number. 2. Understand that the arithmetic square root of a positive number and square are reciprocal operations, and be able to find The arithmetic square root of a positive number..

"Square Root" Real Number PPT Download:

"Square Root" Real Numbers PPT Download Part One: Teaching Objectives Understand the concept of square roots; master the characteristics of square roots. Can use the relationship between square root and square as inverse operations to find the square roots of certain non-negative numbers. Teaching focus: The concept of square roots. teaching..

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Update Time: 2024-11-25

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

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