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Chapter 5: Algebra
Descripción
Mapa Mental sobre Chapter 5: Algebra, creado por Sarah L el 12/06/2014.
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maths
algebra
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Mapa Mental por
Sarah L
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Sarah L
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Resumen del Recurso
Chapter 5: Algebra
The laws of arithmetic
Commutative Law
Addition and subtraction are commutative operations
Multiplication and division aren't
Says that you can operate with two numbers in reverse order
Associative Law
Addition and multiplication are associative
Division and subtraction aren't
Says that when operating with more than two numbers you can group them in any way
The distributive law
Multiply the number outside the grouping systems by each term inside
You can multiply a number by splitting it into the sum of other numbers
Variables
A letter that stands for a number
An algebraic equation is an expression that has pronumerals in it
From words to algebraic expressions
Use variables to covert worded expressions into algebraic expressions
Substitution
Substitution one thing with another
In algebra it means to replace the pronumeral with a number to evaluate an algebraic expression
Equations
Rule: An equation always has an equal sign
Can use "guess and check"
Solution given by value of x
One-step equations
Backtracking method
Balancing method
Two-step equations
Equation problems
Recursos multimedia adjuntos
algebra-rules (image/png)
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