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 Third Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
People's Education Press First Grade Mathematics Volume 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Qingdao Edition Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Into the Zoo" PPT courseware 5
According to a report by CCTV International Channel on June 1, 2004, the number of Guizhou golden monkeys in Fanjingshan National Nature Reserve in Guizhou has increased from more than 600 in 1993 to more than 860.
The number of animals in 1993 + the number of animals increased = the number of animals in 2004
If x golden monkeys are added.
600+x=860
Enlightenment and reflection
If you add the same number to both sides of the equation, the equation still holds.
Subtract the same number from both sides of the equation and the equation still holds.
The value of the unknown that makes the left and right sides of the equation equal is called the solution of the equation. The process of finding the solution to an equation is called solving the equation.
Level 1: Basic exercises
1. In the following formulas, put “√” in the brackets if they are equations, and “×” if they are not equations.
8-2x=2 ( ) 2+4.5=6.5 ( ) 3y-3=12 ( )
1.8a>b ( ) x÷1.2=9.6÷0.8 ( ) m+8=17 ( )
2. Fill in the blanks and solve the equation.
(1)x+6 =19 (2)x-4 =8
Solution: x+6-( )=19-( ) Solution: x-4○( )=8○( )
x=( ) x=( )
Second level: Comprehensive exercises
Solving equations.
x+3=7 x-12=26
Solution: x+3-3=7-3 Solution: x-12+12=26 +12
X=4 X=38
Calculation check: The left side of the equation = x + 3 Calculation check: The left side of the equation = x - 12
=4+3 =38-12
=7 =26
=Right side of equation =Right side of equation
Therefore, x=4 is the solution of the equation x+3=7. Therefore, x=38 is the solution of the equation x-12=26.
Keywords: Into the Zoo teaching courseware, Qingdao edition fifth grade mathematics volume PPT courseware download, fifth grade mathematics slide courseware download, Into the Zoo PPT courseware download, .PPT format;
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"Into the Zoo" PPT courseware 6:
"Into the Zoo" PPT Courseware 6 Practice and see who remembers x+3=5 1.2x-2.5=3.5 The first subquestion: x=2 The second subquestion: x=5 Shanghai Wildlife Park is the first in China Home Safari. There are a total of 16 Siberian tigers and white tigers in the park. Among them, the Siberian tiger...
"Into the Zoo" PPT courseware 4:
"Into the Zoo" PPT Courseware 4 Teaching Objectives 1. Knowledge Objective: To enable everyone to understand the meaning of equations, the concepts of solutions to equations, and master the relationship between equations and equations. 2. Ability goal: Combined with teaching to cultivate everyone’s learning attitude of seeking truth from facts and being truthful and pragmatic..
"Into the Zoo" PPT courseware 3:
"Into the Zoo" PPT Courseware 3 Solve the following equations Equation 3x-2.4=3.6 Solution: 3x-2.4+2.4=3.6+2.4 3x=6 3x3=..
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Update Time: 2024-10-03
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