| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Sixth Grade Mathematics Volume 2 | pptx | 6 MB |
"Number and Algebra" general review PPT courseware
Description
"Number and Algebra" general review PPT courseware
Natural numbers, 0 and integers
When counting objects, 0, 1, 2, 3... used to represent the number of objects are called natural numbers. (That is, natural numbers include 0 and positive integers).
Not an object is represented by 0.
"0" is the smallest natural number.
"1" is the unit of natural numbers.
decimal notation
One (one), ten, one hundred, one thousand, ten thousand, one tenth, one hundredth... are all called counting units. Among them, "one" is the basic unit of counting.
10 ones are tens, 10 tens are hundreds... 10 ten billions are one hundred billion... The progression rate between every two adjacent counting units is ten. This counting method is called decimal counting.
Basic properties of fractions
If the numerator and denominator of a fraction are multiplied or divided by the same number (except zero) at the same time, the magnitude of the fraction remains unchanged.
If the denominator of a fraction remains unchanged and the numerator is multiplied by 3, then the fraction ( )
If the numerator remains unchanged and the denominator is divided by 5, then the fraction ( )
Movement of decimal point digits causes changes in decimal size
Move the decimal point one, two, or three places to the right (left)...the original number will expand (shrink) 10 times, 100 times, 1000 times...
If you want to expand or reduce a number by 10 times or 100 times... you only need to move the decimal point. If there are not enough digits, use 0 to make up for it.
What is a composite number?
Meaning: In addition to 1 and itself, there are other factors. Such a number is called a composite number.
Total numbers within 20: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20.
The smallest sum is 4.
1 is neither a prime number nor a composite number.
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For more information about the PPT courseware "Number and Algebra, Jiangsu Education Edition, Primary School Mathematics Volume 2, General Review", please click the "Number and Algebra PPT, Jiangsu Education Edition, Primary School Mathematics, Volume 2, General Review PPT" tag.
"Number and Algebra" Discovery Park Flash animation courseware:
"Number and Algebra" Flash Animation Courseware of Discovery Park This courseware is the teaching material of Unit 8 of the Hebei Education Edition's Sixth Grade Mathematics Volume 1: Number and Algebra Flash Animation Courseware of Discovery Park. The content is vivid and vivid. Please download it! Keywords: Discovery Paradise teaching courseware, numbers and algebra..
"Ratio and Proportion" Number and Algebra PPT courseware:
"Ratio and Proportion" Number and Algebra PPT Courseware 1. Introduce situations and review old knowledge Question 1: Who can use the knowledge of ratios to talk about the relationship between male classmates, female classmates, and the number of students in the class? Default: The ratio of the number of boys to the number of girls is ( ). The ratio of the number of girls to the number of boys...
"Operations of Numbers" Numbers and Algebra PPT Courseware 2:
"Operations of Numbers" Numbers and Algebra PPT Courseware 2 1. Introduction by asking questions and reviewing old knowledge (1) Review review method Question: What operations have we learned? Default: addition, subtraction, multiplication, division. Transition: Each operation has its own meaning and its own...
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Update Time: 2024-07-04
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