Subjects

Arithmetic

Expressions

Writing Algebraic Expressions Introduction

Learn to Write Algebra Expressions with Variables and Use Parentheses

Name: Knowunity
Brand: Knowunity

View

Learn to Write Algebra Expressions with Variables and Use Parentheses

Addison Cole

@addyc

19 Followers

A comprehensive guide to how to write algebra expressions with variables, covering essential mathematical operations and their translation into algebraic expressions.

Learn to identify key words for multiplication division addition subtraction and convert them into mathematical symbols
Master understanding parentheses in algebra problems and their role in order of operations
Understand how to translate word problems into algebraic expressions using variables
Learn the PEMDAS order of operations (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction)
Practice converting verbal mathematical statements into precise algebraic notation

9/11/2023

INTRO
Writing simple expressions:
Before you can tackle complex word
problems, you need to know how to
translate simple problems into algebr

View

Order of Operations (PEMDAS)

This section introduces the standard order of operations used in mathematics, known by the acronym PEMDAS.

Definition: PEMDAS stands for Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.

Highlight: Operations must be performed in this specific order to obtain correct results.

View

Understanding Parentheses

This section explores the crucial role of parentheses in algebraic expressions and how they affect calculations.

Example: In the expression 2(x+4), distribute 2 by multiplying it with both x and 4, resulting in 2x + 8.

Highlight: Parentheses indicate that the operations inside must be performed first and can also represent multiplication.

View

Working with Exponents

This section explains the concept of exponents and their notation in algebraic expressions.

Definition: An exponent represents repeated multiplication of a number by itself.

Example: 2³ means 2 × 2 × 2 = 8, also read as "two to the third power"

View

Multiplication in Algebra

This section covers the various ways multiplication can be expressed in word problems and their algebraic translations.

Vocabulary: Key words indicating multiplication include times, multiply, per, twice, triple, quadruple, and product.

Example: "Product of 5 and 2" translates to 5 × 2, "20 per week" becomes 20w

View

Division in Algebraic Expressions

This section explains how to recognize and translate division operations in word problems.

Vocabulary: Key words for division include divide, quotient, half, third, fourth, and split.

Example: "Divide 8 in half" becomes 8/2, "A third of 12" translates to 12/3

View

Addition in Algebra

This section details the various ways addition can be expressed in mathematical language.

Vocabulary: Key words for addition include sum, add, combine, increase, larger, plus, more, and and.

Example: "2 more than 7" translates to 7 + 2, "Increase by 10" becomes x + 10

View

Subtraction in Algebra

This section covers the translation of subtraction operations from word problems to algebraic expressions.

Vocabulary: Key words for subtraction include difference, subtract, minus, fewer, take away, and decrease.

Example: "Subtract 2 from 9" becomes 9 - 2, "Decrease by 4" translates to x - 4

View

Introduction to Algebraic Expressions

This introductory section explains the fundamental concept of translating word problems into algebraic expressions. The focus is on developing the basic skills needed for more complex mathematical problem-solving.

Definition: Algebraic expressions are mathematical phrases that combine numbers, variables, and operations.

Highlight: Understanding how to translate words into mathematical symbols is the foundation of algebra.

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Download in

Google Play

Download in

App Store

Knowunity is the # 1 ranked education app in five European countries

4.9+

Average App Rating

15 M

Students use Knowunity

#1

In Education App Charts in 12 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Subjects

Arithmetic

Expressions

Writing Algebraic Expressions Introduction

Learn to Write Algebra Expressions with Variables and Use Parentheses

Addison Cole

@addyc

19 Followers

A comprehensive guide to how to write algebra expressions with variables, covering essential mathematical operations and their translation into algebraic expressions.

Learn to identify key words for multiplication division addition subtraction and convert them into mathematical symbols
Master understanding parentheses in algebra problems and their role in order of operations
Understand how to translate word problems into algebraic expressions using variables
Learn the PEMDAS order of operations (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction)
Practice converting verbal mathematical statements into precise algebraic notation

9/11/2023

6th/7th

Arithmetic

Order of Operations (PEMDAS)

This section introduces the standard order of operations used in mathematics, known by the acronym PEMDAS.

Definition: PEMDAS stands for Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.

Highlight: Operations must be performed in this specific order to obtain correct results.

Understanding Parentheses

This section explores the crucial role of parentheses in algebraic expressions and how they affect calculations.

Example: In the expression 2(x+4), distribute 2 by multiplying it with both x and 4, resulting in 2x + 8.

Highlight: Parentheses indicate that the operations inside must be performed first and can also represent multiplication.

Working with Exponents

This section explains the concept of exponents and their notation in algebraic expressions.

Definition: An exponent represents repeated multiplication of a number by itself.

Example: 2³ means 2 × 2 × 2 = 8, also read as "two to the third power"

Multiplication in Algebra

This section covers the various ways multiplication can be expressed in word problems and their algebraic translations.

Vocabulary: Key words indicating multiplication include times, multiply, per, twice, triple, quadruple, and product.

Example: "Product of 5 and 2" translates to 5 × 2, "20 per week" becomes 20w

Division in Algebraic Expressions

This section explains how to recognize and translate division operations in word problems.

Vocabulary: Key words for division include divide, quotient, half, third, fourth, and split.

Example: "Divide 8 in half" becomes 8/2, "A third of 12" translates to 12/3

Addition in Algebra

This section details the various ways addition can be expressed in mathematical language.

Vocabulary: Key words for addition include sum, add, combine, increase, larger, plus, more, and and.

Example: "2 more than 7" translates to 7 + 2, "Increase by 10" becomes x + 10

Subtraction in Algebra

This section covers the translation of subtraction operations from word problems to algebraic expressions.

Vocabulary: Key words for subtraction include difference, subtract, minus, fewer, take away, and decrease.

Example: "Subtract 2 from 9" becomes 9 - 2, "Decrease by 4" translates to x - 4

Introduction to Algebraic Expressions

Definition: Algebraic expressions are mathematical phrases that combine numbers, variables, and operations.

Highlight: Understanding how to translate words into mathematical symbols is the foundation of algebra.

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Download in

Google Play

Download in

App Store

4.9+

Average App Rating

15 M

Students use Knowunity

#1

In Education App Charts in 12 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User