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Interactive
CK-12 Foundation

Properties of Real Number Addition: The Secret of Subtraction

For Students 6th - 8th Standards
Learners sometimes struggle to understand the concept of adding and subtracting integers. Help them see the why behind their answers using the interactive number line. The values change as individuals adjust the number line for each new...
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Worksheet
Curated OER

Adding and Subtracting Negative Numbers

For Students 6th - 7th
In this positive and negative numbers worksheet, students solve 50 problems in which positive and negative integers are added and subtracted. There is detailed instruction provided. This page was intended to be an online activity, but...
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Worksheet
Curated OER

Solving Positive and Negative Numbers

For Students 5th - 6th
In this positive and negative numbers worksheet, students solve 60 problems in which integers are added or subtracted. There are no hints or examples.
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Lesson Plan
Curated OER

Integers and Fractions

For Teachers 9th - 11th
Students perform operations using positive and negative numbers as well as operations with fractions in various forms. They identify common decimals and their fraction equivalents while converting fractions to decimal form.
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Lesson Plan
Curated OER

Subtracting Monomials and Polynomials

For Teachers 10th - 12th
Students subtract monomials and polynomials by combining like terms. In this advanced subtraction lesson, students define the rules and properties for subtraction of polynomials. They apply the rules for addition to help with the rules...
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Worksheet
Curated OER

Integer Word Problems

For Students 9th
In this integers worksheet, 9th graders solve 5 different word problems that include integers. First, they determine the integers that would solve each of the given problems. Then, students determine two consecutive odd integers whose...
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Lesson Plan
Curated OER

Number: Negative Numbers

For Teachers 5th - 6th
Pupils solve numerical equations with negative numbers. They use the number line to compare the relationship of numbers greater than zero to those less than zero. They practice starting at various points on the number line and then...
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Lesson Plan
Curated OER

Adding and Subtracting With Negative Numbers

For Teachers 5th - 7th
Students solve equations with negative numbers. In this addition and subtraction lesson, students review how to add and subtract with positive and negative numbers on a number line. Students discuss the outcomes of adding two negative...
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Lesson Plan
Curated OER

Adding and Subtracting With Negative Numbers

For Teachers 5th
Fifth graders access prior knowledge of calculating using a number line. In this adding and subtracting with negative numbers lesson plan, 5th graders use a number line to solve math problems.
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Handout
Del Mar College

Translating Verbal Expressions

For Students 5th - 8th Standards
Help scholars translate verbal expressions into numerical expressions. The two-page document is comprised of descriptions and examples that showcase terms and phrases related to addition, subtraction, multiplication, division, powers,...
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Assessment
PBS

Working with Common Denominators: Assessments

For Students 4th - 6th Standards
Now that the practice is over, see if young mathematicians can utilize their new skills on finding common denominators and adding fractions. The assessment contains one map challenge and follows with skills practice. 
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Activity
5280 Math

Integer Interpreter

For Teachers 8th - 9th Standards
Can you add variables if you don't know their value? Using an empty number line, scholars first locate the position of the difference, sum, product, and quotient of two unknown integers. Later problems mix operations as well as add...
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Lesson Plan
Resource Room

Multisensory Teaching: Positive and Negative Integers

For Teachers 5th - 7th Standards
Working with thermometers, sixth graders compare the value of positive and negative numbers. Plenty of teacher suggestions and independent practice ideas are presented. This website links to two more parts in this first of three integer...
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Worksheet
PBS

Working with Common Denominators: Activities and Supplemental Materials

For Students 4th - 6th Standards
Enjoy these straightforward and simple worksheet pages that practice with different denominators. The practice starts simple with adding fractions together and then works on a recipe that needs to be tripled. 
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Lesson Plan
Curated OER

SPIRIT 2.0 Lesosn: Adding and Subtracting Integers

For Teachers 6th - 8th Standards
Six pages prepare you to introduce your math stars to the addition and subtraction of positive and negative numbers. They drive a robot back and forth on an actual number line to represent the operations. If you don't have access to a...
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Lesson Plan
Curated OER

Adding and Subtracting Integers

For Teachers 6th
Sixth graders create electronic manipulatives to model addition and subtraction of integers. They are introduced to the software Inspiration and use techniques such as selecting and deselecting an object, resizing an object, moving an...
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Worksheet
Curated OER

Adding Signed Numbers

For Students 8th - 10th
In this algebra activity, students add and subtract using negative integers that will make the equation a true statement. They graph their answers on a number line. There are 30 questions.
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Worksheet
Curated OER

What's the Difference?

For Students 5th - 6th
In this integers worksheet, students solve and complete 4 different problems that include determining various integers in temperature. First, they use the thermometers shown to graph the difference between the highest and lowest...
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Worksheet
Curated OER

Negative Numbers: 4 Operations

For Students 5th - 6th
In this negative numbers worksheet, students use number lines to complete activities, adding, subtracting, multiplying and dividing negative numbers.
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Lesson Plan
Houghton Mifflin Harcourt

Introducing the Concept: Adding and Subtracting With Negative Integers

For Teachers 5th - 7th Standards
A basic narrative is outlined for teaching a lesson on the addition and subtraction of integers. Using a number line, you can demonstrate how to find the sum of a positive and negative integer. On the right side of the page are links to...
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Worksheet
Curated OER

Rational Numbers

For Students 8th - 9th
In this rational numbers worksheet, students solve and complete 33 different problems that include adding and subtracting various types of rational numbers. First, they determine the sum or difference of each problems. Then, students...
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Lesson Plan
Curated OER

Multiplying and Dividing Integers/Relay Race

For Teachers 6th - 8th Standards
Give your class a list of multiplication and division sentences that contain both positive and negative integers. Have them analyze them to see if they can discover the pattern with the signs. From these patterns, help them develop the...
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Lesson Plan
Curated OER

Add & Subtract Fractions w/Unlike Denominators, 2

For Teachers 7th - 9th
Students use several examples to create a method for adding and subtracting fractions with unlike denominators. They present these methods to the class and then practice applying methods to sample problems.
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Lesson Plan
Curated OER

Addition and Subtraction of Signed Numbers

For Teachers 4th - 6th
Students explore the concept of adding and subtracting using positive and negative numbers. In this addition and subtraction of signed numbers lesson, students use pennies to represent positive and negative numbers. Students deposit and...