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Defining variables

Variables and expressions.

Students define variables and write expressions to answer questions with unknown amounts. These worksheets demonstrate the need to clearly define what a variable represents.

math worksheets variables and expressions

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math worksheets variables and expressions

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Key to Algebra workbook series

Key to Algebra Workbooks

Key to Algebra offers a unique, proven way to introduce algebra to your students. New concepts are explained in simple language, and examples are easy to follow. Word problems relate algebra to familiar situations, helping students to understand abstract concepts. Students develop understanding by solving equations and inequalities intuitively before formal solutions are introduced. Students begin their study of algebra in Books 1-4 using only integers. Books 5-7 introduce rational numbers and expressions. Books 8-10 extend coverage to the real number system.

Practice makes perfect. Practice math at IXL.com

Variable Expressions Worksheets

Variable expressions worksheets have mathematical phrases that connect numbers, variables, and operators for showing the value of something. It represents the value of something. variable expressions worksheets help students to be evaluated. equations can be solved and often they make two expressions equal.

Benefits of Variable Expressions Worksheets

Variable expressions worksheets can control the number of problems, difficulty level, range of numbers used, workspace below the problems, border around the problems, and additional instructions.

Variable expressions worksheets come with visual simulation for students to see the problems in action, and provide a detailed step-by-step solution for students to understand the process better. Students get equipped with the problems of variables with the help of these worksheets.

variable expressions worksheets are well-curated to enhance a child's learnability through interactive exercises and problems based on the order of operations. By practicing multiple problems covered in these worksheets, a child can quickly grasp both easy and complicated concepts with ease.

Download Variable Expressions Worksheet PDFs

These math worksheets should be practiced regularly and are free to download in PDF formats.

MATH Worksheets 4 Kids

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  • Evaluating Expression

Evaluating Algebraic Expressions Worksheets

This ensemble of evaluating algebraic expression worksheets is designed by experts for students of grade 6, grade 7, grade 8, and high school. Learners need to evaluate expressions containing single as well as multi variables. Multiple-choice questions on equations and inequalities, function table, algebraic expressions in geometric shapes and ordering expressions are also included. Access some of these worksheets for free!

Evaluating Expressions in Single Variable

Evaluating Expressions in Single Variable

Evaluate each algebraic expression by substituting the given value of the variable. These 6th grade pdf worksheets are split into three levels based on the number of operations involved and the values of the variables.

easy 1

Evaluating Expressions in Multivariable

In this set of printable worksheets for 7th grade and 8th grade students, evaluate the algebraic expressions containing multi-variable. The variables may contain whole numbers, integers or fractions.

MCQs based on Equations | Single Variable

MCQs based on Equations | Single Variable

Assess how effectively you can evaluate algebraic expressions containing single variables with this attractive compilation. Choose the correct answer that satisfies the given equation in part A. In part B, select the equation that holds true for the given value.

pdf 1

MCQs based on Equations | Multivariable

Take your learning to the next level with this series of printable worksheets, where you have to identify the correct set of values and choose the correct equation that holds true for the set of variables.

exercise 1

Algebraic Expressions - Function Table | Easy

Enhance your algebraic skills by working out the problems in this batch of pdf worksheets. Complete the function table by evaluating simple algebraic expressions for the given set of values. Use the answer keys to verify your solutions.

practice 1

Algebraic Expressions - Function Table | Moderate

With concentration and practice, evaluation of algebraic expressions becomes easier. Presenting more-complicated expressions, this resource tests your comprehension. Just, plug in the given values of the variables in the equations and record the answers in the table.

worksheet 1

MCQs based on Inequalities | Single Variable

Assist students to comprehend inequality with this great set of printable worksheets. In Part A, choose the correct value that satisfies the given inequality. Identify the inequality that is true for the given value of the variable(s) in Part B.

printable 1

MCQs based on Inequalities | Multivariable

Zoom through these pdfs to conquer the concept of inequality with multiple variables. Identify the choice that satisfies the given inequality, in part A. In part B, select the inequality that holds true for the values of the variables specified in the question.

Geometric Shapes: Finding the Dimensions | Single Variable

Geometric Shapes: Finding the Dimensions | Single Variable

This set of high school pdf worksheets contains problems based on the dimensions of geometric shapes that are represented with algebraic expressions involving single variables. Evaluate the algebraic expression for the given value to determine the attributes.

Geometric Shapes: Finding the Dimensions | Multivariable

Geometric Shapes: Finding the Dimensions | Multivariable

Illustrated with 2D shapes and 3D shapes, these worksheets present the dimensions of the geometrical figures as algebraic expressions with multiple variables. Replace the variables with the given values and figure out the dimensions.

Arrange the Algebraic Expressions in Order | Single Variable

Arrange the Algebraic Expressions in Order | Single Variable

Substitute the value of the given variable in each set of algebraic expressions and evaluate them. Next, rearrange the expressions in ascending or decreasing descending order as specified.

Arrange the Algebraic Expressions in Order | Multivariable

Arrange the Algebraic Expressions in Order | Multivariable

Not only does this resource helps you practice evaluating expressions with multiple variables, but also assists in recapitulating the concept of arranging expressions in increasing or decreasing order as indicated in the question.

Evaluating using Algebraic Identities

Evaluating using Algebraic Identities

Engage this set of evaluating expressions using algebraic identities worksheets encompass topics on evaluating the numerical expressions using an appropriate algebraic identity.

(18 Worksheets)

Related Worksheets

» Translating Phrases

» Simplifying Algebraic Expressions

» Evaluating Functions

» Polynomials

» Algebraic Identities

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Variables Portrait Color 1

What are Variables Worksheets?

Variables worksheets provide computational practice for students who are learning to master new skills they are taught in class. They are perfect for any level, from beginning computations to advanced algebra practice.

In the realm of mathematics, algebra stands as a gateway to problem-solving, critical thinking, and analytical skills. As educators, we strive to make algebra accessible and engaging for our students. One effective approach is the use of algebra worksheets, particularly those centered around variables and expressions.

Understanding Variables and Expressions

Algebraic expressions might seem like a complex realm, but they're essentially a way to represent relationships and quantities. Variables, often represented by letters like 'x' or 'y', serve as placeholders for unknown values. To introduce this concept, start with basic expressions and their meanings. Consider using science variables worksheets to connect algebraic variables with real-life variables. These worksheets help bridge the gap between classroom learning and practical applications.

Moving beyond expressions, equations bring a sense of balance to algebra. An equation is like a mathematical sentence that states two expressions are equal. Teach students how to solve equations step by step, demonstrating the process with clear examples. Distribute math variables worksheets that focus on solving equations with a single variable. This practice will lay the foundation for tackling more complex problems.

Translating Word Problems into Algebraic Equations

Algebra doesn't just reside within numbers; it's a powerful tool for solving real-world problems. Word problems offer a way to integrate algebraic thinking into practical scenarios. Provide students with variables and expressions worksheets that present these challenges. Teach them how to dissect the problem, identify the variables, and translate the information into algebraic equations.

As students gain confidence, introduce them to equations with variables on both sides. These equations offer a bit more complexity and require a different approach. Engage the classroom with interactive activities like an "equation balancing" game, where students manipulate virtual scales to isolate the variable. Your independent and dependent variables generator can produce equations for further practice.

In real-life situations, multiple variables may interact simultaneously. This is where systems of equations come into play. Guide students through solving systems using methods like substitution and elimination. Utilize variables worksheets that present scenarios requiring the solution of multiple equations together. This dynamic approach emphasizes the interconnectedness of variables.

Graphical Representation of Linear Equations

Visual learning is a powerful tool. Show how algebraic equations translate into graphs, bringing abstract concepts to life. Explain how to graph linear equations and introduce concepts like the number line. Provide students with linear equations worksheets to practice both graphing and interpreting solutions.

Beyond equations, introduce inequalities to showcase relationships involving less than, greater than, and other comparisons. Dive into positive and negative integers, and demonstrate how they interact in algebraic expressions. Create worksheets that challenge students to solve inequalities involving addition, subtraction, multiplication, and division.

Review, Assessment, and Extension

Periodically, assess your students' progress using comprehensive review worksheets. Include a mix of problems that cover the spectrum of concepts explored. For advanced learners, offer extension activities involving more complex equations, quadratic functions, and exploring algebraic patterns.

By integrating variables worksheets and innovative teaching strategies, educators can make algebra a vibrant and accessible subject. So, teachers, seize the opportunity to empower your students with the language of algebra – equations, expressions, variables, and all.

Tips for Making a Variables Worksheet

  • Determine the Educational Goals: Clarify the learning objectives of your worksheet, focusing on teaching essential concepts of algebraic expressions and variables.
  • Choose a Relevant Context: Select a relatable theme or context that aligns with the target concepts to make your algebra worksheets engaging.
  • Craft Varied Problem Types: Develop diverse problems that cover different aspects of identifying variables within algebraic expressions and equations.
  • Introduce Different Variable Types: Incorporate problems showcasing various types of variables, such as constants, coefficients, and unknowns, in both isolated and combined settings.
  • Offer Clear Examples: Include well-constructed variables and expressions examples that illustrate the process of identifying and working with variables effectively.
  • Blend in Word Problems: Integrate identifying variables worksheets featuring word problems, challenging students to relate variables to real-life scenarios.
  • Enhance Learning with Visuals: Incorporate visuals, charts, and diagrams to visually depict the relationships between variables and algebraic expressions.
  • Include Practical Application: Design a subset of problems that prompt students to connect the theory to real-world scenarios, fostering a deeper understanding of the subject matter.

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Frequently Asked Questions About Variables

What is a variable in math.

In mathematics, it is a symbol or letter used to represent an unknown or changing quantity. It is a fundamental concept in algebra and is often used to express relationships, patterns, and equations. Variables allow mathematicians to work with generalized expressions and solve problems that involve changing values.

What are the different types of variables?

In mathematics and research, variables are categorized based on their roles and characteristics. The independent variable is intentionally changed or controlled in an experiment and is believed to cause changes in the dependent variable, which is observed or measured as the outcome. Controlled variables are kept constant to isolate the effects of the independent variable. Categorical variables represent distinct categories, while numerical variables include both discrete (distinct values) and continuous (any value within a range) types. Extraneous variables can affect outcomes, and mediating variables explain the relationship between the independent and dependent variables. Moderating variables influence the strength or direction of this relationship. Understanding these variable types is vital for accurate research and data analysis.

Can you give examples of using variables in real life?

Variables are used in various real-life scenarios. For instance, in calculating expenses, 'x' could represent the cost of an item, and 'y' could represent the quantity purchased. In physics, 't' might denote time and 'd' distance, allowing you to express speed as 'speed = d/t'.

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Algebra Worksheets

Welcome to the Algebra worksheets page at Math-Drills.com, where unknowns are common and variables are the norm. On this page, you will find Algebra worksheets mostly for middle school students on algebra topics such as algebraic expressions, equations and graphing functions.

This page starts off with some missing numbers worksheets for younger students. We then get right into algebra by helping students recognize and understand the basic language related to algebra. The rest of the page covers some of the main topics you'll encounter in algebra units. Remember that by teaching students algebra, you are helping to create the future financial whizzes, engineers, and scientists that will solve all of our world's problems.

Algebra is much more interesting when things are more real. Solving linear equations is much more fun with a two pan balance, some mystery bags and a bunch of jelly beans. Algebra tiles are used by many teachers to help students understand a variety of algebra topics. And there is nothing like a set of co-ordinate axes to solve systems of linear equations.

Most Popular Algebra Worksheets this Week

Combining Like Terms and Solving Simple Linear Equations

Properties and Laws of Numbers Worksheets

The commutative law.

math worksheets variables and expressions

The commutative law or commutative property states that you can change the order of the numbers in an arithmetic problem and still get the same results. In the context of arithmetic, it only works with addition or multiplication operations , but not mixed addition and multiplication. For example, 3 + 5 = 5 + 3 and 9 × 5 = 5 × 9. A fun activity that you can use in the classroom is to brainstorm non-numerical things from everyday life that are commutative and noncommutative. Putting on socks, for example, is commutative because you can put on the right sock then the left sock or you can put on the left sock then the right sock and you will end up with the same result. Putting on underwear and pants, however, is noncommutative.

The Associative Law

math worksheets variables and expressions

The associative law or associative property allows you to change the grouping of the operations in an arithmetic problem with two or more steps without changing the result. The order of the numbers stays the same in the associative law. As with the commutative law, it applies to addition-only or multiplication-only problems. It is best thought of in the context of order of operations as it requires that parentheses must be dealt with first. An example of the associative law is: (9 + 5) + 6 = 9 + (5 + 6). In this case, it doesn't matter if you add 9 + 5 first or 5 + 6 first, you will end up with the same result. Students might think of some examples from their experience such as putting items on a tray at lunch. They could put the milk and vegetables on their tray first then the sandwich or they could start with the vegetables and sandwich then put on the milk. If their tray looks the same both times, they will have modeled the associative law. Reading a book could be argued as either associative or nonassociative as one could potentially read the final chapters first and still understand the book as well as someone who read the book the normal way.

Inverse relationships with one blank

math worksheets variables and expressions

Inverse relationships worksheets cover a pre-algebra skill meant to help students understand the relationship between multiplication and division and the relationship between addition and subtraction.

Inverse relationships with two blanks

math worksheets variables and expressions

Missing Numbers or Unknowns in Equations Worksheets

Missing numbers in equations worksheets in three types: blanks for unknowns, symbols for unknowns and variables for unknowns.

Missing Numbers Worksheets with Blanks as Unknowns

math worksheets variables and expressions

In these worksheets, the unknown is limited to the question side of the equation which could be on the left or the right of equal sign.

Missing Numbers Worksheets with Symbols as Unknowns

math worksheets variables and expressions

Equalities with addition on both sides of the equation and symbols as unknowns

math worksheets variables and expressions

Missing numbers worksheets with variables as unknowns

math worksheets variables and expressions

Solving Simple Linear Equations

math worksheets variables and expressions

Algebraic Expressions Worksheets

Using the distributive property.

math worksheets variables and expressions

The distributive property is an important skill to have in algebra. In simple terms, it means that you can split one of the factors in multiplication into addends, multiply each addend separately, add the results, and you will end up with the same answer. It is also useful in mental math, and example of which should help illustrate the definition. Consider the question, 35 × 12. Splitting the 12 into 10 + 2 gives us an opportunity to complete the question mentally using the distributive property. First multiply 35 × 10 to get 350. Second, multiply 35 × 2 to get 70. Lastly, add 350 + 70 to get 420. In algebra, the distributive property becomes useful in cases where one cannot easily add the other factor before multiplying. For example, in the expression, 3(x + 5), x + 5 cannot be added without knowing the value of x. Instead, the distributive property can be used to multiply 3 × x and 3 × 5 to get 3x + 15.

Evaluating algebraic expressions

math worksheets variables and expressions

Exponent Rules and Properties

Practice with basic exponent rules.

math worksheets variables and expressions

As the title says, these worksheets include only basic exponent rules questions. Each question only has two exponents to deal with; complicated mixed up terms and things that a more advanced student might work out are left alone. For example, 4 2 is (2 2 ) 2 = 2 4 , but these worksheets just leave it as 4 2 , so students can focus on learning how to multiply and divide exponents more or less in isolation.

Linear Expressions & Equations

Linear equations worksheets including simplifying, graphing, evaluating and solving systems of linear equations.

Translating algebraic phrases in words to algebraic expressions

math worksheets variables and expressions

Knowing the language of algebra can help to extract meaning from word problems and to situations outside of school. In these worksheets, students are challenged to convert phrases into algebraic expressions.

Simplifying linear expressions (combining like terms)

math worksheets variables and expressions

Combining like terms is something that happens a lot in algebra. Students can be introduced to the topic and practice a bit with these worksheets. The bar is raised with the adding and subtracting versions that introduce parentheses into the expressions. For students who have a good grasp of fractions, simplifying simple algebraic fractions worksheets present a bit of a challenge over the other worksheets in this section.

Rewriting linear equations

math worksheets variables and expressions

Determining linear equations from slopes, y-intercepts, and points

math worksheets variables and expressions

Linear Equation Graphs

math worksheets variables and expressions

Graphing linear equations and reading existing graphs give students a visual representation that is very useful in understanding the concepts of slope and y-intercept.

Solving linear equations with jelly beans is a fun activity to try with students first learning algebraic concepts. Ideally, you will want some opaque bags with no mass, but since that isn't quite possible (the no mass part), there is a bit of a condition here that will actually help students understand equations better. Any bags that you use have to be balanced on the other side of the equation with empty ones.

Probably the best way to illustrate this is through an example. Let's use 3 x + 2 = 14. You may recognize the x as the unknown which is actually the number of jelly beans we put in each opaque bag. The 3 in the 3 x means that we need three bags. It's best to fill the bags with the required number of jelly beans out of view of the students, so they actually have to solve the equation.

On one side of the two-pan balance, place the three bags with x jelly beans in each one and two loose jelly beans to represent the + 2 part of the equation. On the other side of the balance, place 14 jelly beans and three empty bags which you will note are required to "balance" the equation properly. Now comes the fun part... if students remove the two loose jelly beans from one side of the equation, things become unbalanced, so they need to remove two jelly beans from the other side of the balance to keep things even. Eating the jelly beans is optional. The goal is to isolate the bags on one side of the balance without any loose jelly beans while still balancing the equation.

The last step is to divide the loose jelly beans on one side of the equation into the same number of groups as there are bags. This will probably give you a good indication of how many jelly beans there are in each bag. If not, eat some and try again. Now, we realize this won't work for every linear equation as it is hard to have negative jelly beans, but it is another teaching strategy that you can use for algebra.

Solving linear equations

math worksheets variables and expressions

Despite all appearances, equations of the type a/ x are not linear. Instead, they belong to a different kind of equations. They are good for combining them with linear equations, since they introduce the concept of valid and invalid answers for an equation (what will be later called the domain of a function). In this case, the invalid answers for equations in the form a/ x , are those that make the denominator become 0.

Linear Systems

Solving systems of linear equations.

math worksheets variables and expressions

Solving systems of linear equations by graphing

math worksheets variables and expressions

Quadratic Expressions & Equations

Quadratic expressions and equations worksheets including multiplying factors, factoring, and solving quadratic equations.

Simplifying quadratic expressions (combining like terms)

math worksheets variables and expressions

Adding/Subtracting and Simplifying quadratic expressions

math worksheets variables and expressions

Multiplying factors of quadratic expressions

math worksheets variables and expressions

Factoring quadratic expressions

math worksheets variables and expressions

The factoring quadratic expressions worksheets in this section provide many practice questions for students to hone their factoring strategies. If you would rather worksheets with quadratic equations, please see the next section. These worksheets come in a variety of levels with the easier ones are at the beginning. The 'a' coefficients referred to below are the coefficients of the x 2 term as in the general quadratic expression: ax 2 + bx + c. There are also worksheets in this section for calculating sum and product and for determining the operands for sum and product pairs.

Whether you use trial and error, completing the square or the general quadratic formula, these worksheets include a plethora of practice questions with answers. In the first section, the worksheets include questions where the quadratic expressions equal 0. This makes the process similar to factoring quadratic expressions, with the additional step of finding the values for x when the expression is equal to 0. In the second section, the expressions are generally equal to something other than x, so there is an additional step at the beginning to make the quadratic expression equal zero.

Solving Quadratic equations that Equal Zero (e.g. ax² + bx + c = 0)

math worksheets variables and expressions

Solving Quadratic equations that Equal an Integer (e.g. ax² + bx + c = d)

math worksheets variables and expressions

Other Polynomial and Monomial Expressions & Equations

Factoring non-quadratic expressions worksheets with various levels of complexity.

Simplifying polynomials that involve addition and subtraction

math worksheets variables and expressions

Simplifying polynomials that involve multiplication and division

math worksheets variables and expressions

Simplifying polynomials that involve addition, subtraction, multiplication and division

math worksheets variables and expressions

Factoring expressions that do not include a squared variable

math worksheets variables and expressions

Factoring expressions that always include a squared variable

math worksheets variables and expressions

Factoring expressions that sometimes include squared variables

math worksheets variables and expressions

Multiplying polynomials with two factors

math worksheets variables and expressions

Multiplying polynomials with three factors

math worksheets variables and expressions

Inequalities Including Graphs

Inequalities worksheets including writing the inequality that matches a graph and graphing inequalities on a number line.

Writing the inequality that matches the graph

math worksheets variables and expressions

Graphing inequalities on number lines

math worksheets variables and expressions

Solving linear inequalities

math worksheets variables and expressions

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1-1 Variables and Expressions

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