Western Normal University Edition First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
Hebei Education Edition Seventh Grade Mathematics Volume 2
Hebei Education Edition Fourth Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
People's Education Press Seventh Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Real Numbers" PPT courseware 8
Whole numbers and fractions are collectively called rational numbers
Finite decimals and infinite recurring decimals are called rational numbers
Infinite non-repeating decimals
Infinite non-repeating decimals are called irrational numbers
induction
1. Every rational number can be represented by a point on the number axis;
2. Every irrational number can be represented by a point on the number axis;
Which of the following statements is wrong ( )
A. There is the smallest positive number
B. There is no largest rational number
C. The number with the smallest absolute value
D. Positive fractions are both rational numbers and real numbers
Which of the following conclusions is correct ( )
A. Infinite decimals are irrational numbers
B. Rational numbers can be expressed in fractional form
C. Irrational numbers are all numbers with a root sign
D. Irrational numbers are infinite non-repeating decimals
summary
1. What knowledge did you learn in this class?
Definition of real numbers
Classification of real numbers (definition, positive and negative)
One-to-one correspondence between real numbers and points on the number line
2. What is your experience?
Rational numbers Irrational numbers
Finite decimal or infinite non-repeating decimal
Infinitely repeating decimals
judge:
1. Real numbers are either rational or irrational. ( )
2. Irrational numbers are infinite non-repeating decimals. ( )
3. Irrational numbers are infinite decimals. ( )
4. Numbers with a root sign are irrational. ( )
5. Irrational numbers must always have a root sign. ( )
6. The product of two irrational numbers is not necessarily an irrational number. ( )
7. The sum of two irrational numbers must be an irrational number. ( )
Keywords: real number teaching courseware, New People's Education Edition seventh grade mathematics volume 2 PPT courseware, seventh grade mathematics slide courseware download, real number PPT courseware download, .ppt format
For more information about the "Real Numbers" PPT courseware, please click on the Real Numbers ppt tab.
"Real Numbers" PPT courseware 11:
"Real Numbers" PPT Courseware 11 Review Questions Can you answer the following questions? (1) The opposite of 2 is ______, the opposite of - is ______, the opposite of 0 is ______; (2) |2& #124;=______, |-| =______, |0|=______. ... ... ..
"Real Numbers" PPT courseware 10:
"Real Numbers" PPT Courseware 10 Knowledge Review 1. Irrational numbers: infinite non-recurring decimals are called irrational numbers 2. Rational numbers: finite and infinite recurring decimals are rational numbers or integers and fractions are collectively called rational numbers. Think about (1) What have you known so far? number? ..
"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...
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