Unknown Type
Khan Academy

Khan Academy: Add and Subtract Within 100 Word Problems 2

For Students 1st - 3rd Standards
Practice solving word problems with addition and subtraction. These questions are comparison problems including difference unknown, smaller value unknown, and bigger value unknown. Numbers used are 100 or less. Students receive immediate...
Unit Plan
Khan Academy

Khan Academy: Add and Subtract Within 100 Word Problems 3

For Students 1st - 3rd Standards
Practice solving word problems with addition and subtraction. These questions are start unknown problems including add to and take from problems. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity...
Unit Plan
Khan Academy

Khan Academy: Find the Missing Number (Add and Subtract Within 100)

For Students 1st - 3rd Standards
Practice solving problems like "___ - 45 = 27" where you have to figure out the missing value in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Unknown Type
Khan Academy

Khan Academy: Add and Subtract Complex Numbers

For Students 9th - 10th Standards
Practice addition and subtraction with complex numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Mixed Adding and Subtracting of Capacities (English Units)

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to add and subtract compound units of capacity. Includes video demonstrating a sample problem [2:22] and a set of...
Handout
Cool Math

Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Different Denominators

For Students 4th - 5th Standards
Demonstrates how to add and subtract fractions where the denominators are different. Includes sample problems to try.
Handout
Cool Math

Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Whole and Mixed Numbers

For Students 4th - 5th Standards
Short tutorial explaining how to add and subtract fractions, whole numbers, and mixed numbers. Includes example problems to try.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: One Step Metric Capacity, Add and Subtract Word Problems

For Students 3rd - 4th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to use addition and subtraction to solve simple word problems about metric capacity. Includes video demonstrating a...
eBook
Math Planet

Math Planet: Pre Algebra: Adding and Subtracting Integers

For Students 6th - 8th Standards
Gain an understanding of how to add and subtract integers by viewing examples and a video lesson. [0:56]
Lesson Plan
Other

Nearpod: Adding and Subtracting Within 10

For Teachers K - 1st
In the lesson plan on adding and subtracting within 10, students will use ten frames to add and subtract. They will also review key vocabulary terms, like sum, difference, and equal sign.
Unknown Type
Khan Academy

Khan Academy: Use Visuals to Add and Subtract Fractions With Unlike Denominators

For Students 3rd - 5th Standards
In this exercise, students practice multiplying fractions by fractions. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Beginning Algebra: Adding and Subtracting Polynomials

For Students 9th - 10th Standards
A tutorial as an introduction to polynomials. Basic terminology and simple algebraic manipulations. Offers discussions and practice exercises with answers and explanations.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding and Subtracting Numbers Up to 20 Word Problems

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve word problems where they have to add or subtract 3 or more numbers.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding and Subtracting Fractions With Different Denominators

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] This video gives steps of finding common denominators and then adding and subtracting multiple fractions together. After the video, there are practice problems...
Unit Plan
Khan Academy

Khan Academy: Add & Subtract Vectors

For Students 9th - 10th
Add and subtract vectors given in component form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Math Is Fun

Math Is Fun: Adding and Subtracting Time

For Students 1st - 5th Standards
Students learn how to add and subtract time. Class notes and practice problems with solutions are provided.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding or Subtracting Lengths in One Step

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to add and subtract measurements of length from a given word problem. The video is followed by practice problems covering the topics in the...
Activity
Lawrence Hall of Science

The Math Page: Skill in Algebra: Adding and Subtracting Signed Numbers

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains how to add and subtract signed numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Add and Subtract to 100 Mixed Operations and Word Problems

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students solve addition and subtraction problems in order to determine missing numbers to keep the equation balanced. When...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Adding & Sub. Rational Expressions

For Students 9th - 10th Standards
Rational expressions have never been so easy! Use this site to learn how to add and subtract them with ease and confidence. And common denominators? No Problem! Great practice problems are included to see how much you've learned.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding and Subtracting Three or More Numbers

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students are given word problems where they have to add or subtract 3 or more 1-digit numbers.
Unknown Type
Math Warehouse

Math Warehouse: Add and Subtract Integers Worksheet [Pdf]

For Teachers 3rd - 8th Standards
Worksheet contains problems through which students can practice adding and subtracting integers. Real-world application of the skill is provided as well as a quick, diagnostic pre-test.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding or Subtracting Lengths in One Step (English Units)

For Students 3rd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to solve word problems with simple addition and subtractions of lengths. [0:20]
Unit Plan
Khan Academy

Khan Academy: Addition Using Groups of 10 and 100

For Students 3rd - 5th Standards
In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...