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Read through this explanation of how to add three digit numbers. Use the online game to practice this skill. The game will keep running totals of your correct and incorrect answers. It will also show you a percent score of the correct answers.

Subject:
Mathematics
Material Type:
Game
Provider:
AAA Math
12/01/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Practice adding and subtracting fractions in these problems that include inequalities.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Activity/Lab
Assessment
Provider:
CK-12 Foundation
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Demonstrates how to add and subtract pieces of fruit using the numbers 5 and 3. [2:17]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
11/14/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Practice adding and subtracting fractions with different denominators.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Activity/Lab
Assessment
Provider:
CK-12 Foundation
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
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Practice solving word problems by adding and subtracting fractions. The fractions used in these problems have like (common) denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
11/14/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Sal adds 53+17 by breaking apart the numbers and making a group of 10. [3:35]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
11/14/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Sal uses an understanding of place value to add decimals, such as 0.68+0.33. [6:56]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
11/14/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Sal simplifies a polynomial addition expression. [2:00]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
11/14/2023
Educational Use
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Students use estimates and work on strategies for adding and subtracting decimals.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
BetterLesson
12/01/2022
Conditional Remix & Share Permitted
CC BY-NC-SA
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This lesson covers adding and subtracting matrices with the same dimensions. Students can watch a video tutorial, explore guided notes and then attempt practice problems.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Lesson
Provider:
CK-12 Foundation
Provider Set:
CK-12 Algebra
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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This lesson covers adding and subtracting rational expressions when one of the denominators is the LCD. Students can look at guided notes and attempt practice problems.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Lesson
Provider:
CK-12 Foundation
Provider Set:
CK-12 Algebra
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
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This lesson covers adding and subtracting rational expressions when the denominators are the same.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Module
Provider:
CK-12 Foundation
Provider Set:
CK-12 Algebra
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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Here you'll learn how to add and subtract polynomials, as well as learn about the different parts of a polynomial. Practice problems are also included.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Lesson
Provider:
CK-12 Foundation
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Lesson
Provider:
CK-12 Foundation
11/15/2023
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
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In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.

A free CK-12 account is required to view all materials.

Subject:
Mathematics
Material Type:
Lesson
Provider:
CK-12 Foundation
11/15/2023
Educational Use
Rating
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In this feature, adapted from Interactive NOVA: Earth, students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

Subject:
Science
Material Type:
Interactive
Lesson
Provider:
PBS LearningMedia
11/06/2023
Educational Use
Rating
0.0 stars

A tutorial as an introduction to polynomials. Basic terminology and simple algebraic manipulations. Offers discussions and practice exercises with answers and explanations.

Subject:
Mathematics
Material Type:
Module
Provider:
West Texas A&M University
Provider Set:
Beginning Algebra
08/28/2023
Educational Use
Rating
0.0 stars

Students learn how to properly add and subtract decimal quantities.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
BetterLesson
12/01/2022
Educational Use
Rating
0.0 stars

Understanding that when the total number of parts of a whole are the same, fractions can be added.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
BetterLesson