"Real Numbers" PPT courseware 11

Description

"Real Numbers" PPT courseware 11

Review questions

Can you answer the following questions?

(1) The opposite of √2 is ______,

The opposite of -π is ______,

The opposite of 0 is ______;

(2)|√2|=______, |-π| =______,

|0|＝______．

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Question 1. Can the point (√2,1) be described in the Cartesian coordinate system?

There is a one-to-one correspondence between points in the Cartesian coordinate system and ordered pairs of real numbers.

Instructions and advice

There is a one-to-one correspondence between real numbers and points on the number line.

Every real number can be represented by a point on the number line;

Conversely, every point on the number line represents a real number.

Similarly, points in the plane rectangular coordinate system have a one-to-one correspondence with ordered pairs of real numbers.

Which of the following statements is incorrect ( )

A. The points on the number axis represent either rational numbers or irrational numbers;

B. Points on the number axis correspond to real numbers one-to-one;

C. Points on the number axis correspond to rational numbers one-to-one;

D. There are countless points representing irrational numbers between 0 and 1 on the number axis.

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"Real Numbers" PPT courseware 9:

"Real Numbers" PPT Courseware 9 Summary: Any rational number can be written as a finite decimal or an infinite recurring decimal. (Characteristics of rational numbers) Induction: They are infinite non-repeating decimals, so we know that they are neither integers nor fractions. We refer to this type of infinite...

"Real Numbers" PPT courseware 8:

"Real Numbers" PPT Courseware 8 Integers and fractions are collectively called rational numbers. Finite decimals and infinitely recurring decimals are called rational numbers. Infinite non-recurring decimals are called irrational numbers. Induction 1. Every rational number can be represented by a point on the number axis; 2. Every irrational number ..

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Update Time: 2024-10-02

This template belongs to Mathematics courseware Qingdao Edition Eighth Grade Mathematics Volume 2 industry PPT template

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