Curated OER
Negative Exponents and Scientific Notation
In this exponent rules activity, high schoolers simplify 56 negative exponents and scientific notation problems. Students use exponent rules to simplify each problem.
Curated OER
Dividing Expressions
In this algebra worksheet, students divide expressions and utilize exponent rules. There are 7 questions with multiple parts.
Khan Academy
Khan Academy: Add Fractions With Common Denominators
Add two fractions with the like denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Practice: Add Fractions With Common Denominators
In this exercise, questions provide practice with adding fractions with common denominators. Immediate feedback is given and hints or a video are available if needed.
Cool Math
Coolmath: Coolmath4kids: Add Fractions With Like Denominators
Demonstrates how to add fractions where the denominators are the same. Includes sample problems to try.
Khan Academy
Khan Academy: Add Fractions With Common Denominators
Add two fractions with the like denominators.
CK-12 Foundation
Ck 12: Arithmetic: Sums of Fractions With Like Denominators
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the sum of fractions with like or common denominators. Students examine guided notes, review guided practice, watch instructional videos...
McGraw Hill
Glencoe: Self Check Quizzes 1 Add and Subtract Fractions With Like Denominators
Use Glencoe's randomly generated self-checking quiz to test your knowledge of adding and subtracting fractions with like denominators. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of...
McGraw Hill
Glencoe: Self Check Quizzes 3 Add and Subtract Fractions With Like Denominators
Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of adding and subtracting fractions with like denominators. Each question has a "Hint" link to help. Choose the correct answer for each problem. At...
Google
Google for Education: Fraction Addition and Common Denominators
Students learn how to find a common denominator between two fractions and then add or subtract the fractions. Decomposition is used to identify patterns in fractions that are relatively easy to visualize, and apply these patterns to...
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers Word Problems (Like Denominators)
Solve addition and subtraction word problems involving fractions and mixed numbers. Fractions and mixed numbers have common denominators.
Math Is Fun
Math Is Fun: Common Denominator
Learn the "easiest method" for finding the common denominator of two fractions with different denominators. View animated examples and look over the steps that it takes to find a common denominator and add two fractions.
Visual Fractions
Visual Fractions: Add Fractions With Number Line or Circle Models
This site is provided for by Visual Fractions. Add mixed numbers with like denominators using circles. Click on the "Explain" button to understand the answer.
Illustrative Mathematics
Illustrative Mathematics: Finding Common Denominators to Add
Part (a) of this task asks students to find and use two different common denominators to add the given fractions. The purpose of this question is to help students realize that they can use any common denominator to find a solution, not...
Visual Fractions
Visual Fractions: Add Unlike Fractions With Number Line Models
Boost your ability to add number line fractions with unlike denominators with this interactive math game. A basic understanding of factors is key to success. Instructions with detailed examples are easily accessible.
Khan Academy
Khan Academy: Subtracting Fractions With Unlike Denominators
Practice subtracting fractions that have different denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Cool Math
Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Different Denominators
Demonstrates how to add and subtract fractions where the denominators are different. Includes sample problems to try.
Better Lesson
Better Lesson: Adding and Subtracting With Fractions
Students add and subtract fractions using a common denominator.
AAA Math
Aaa Math: Adding Fractions With the Same Denominators
This site describes how to add fractions with like denominators. It provides exercises and games to practice the skill.
Khan Academy
Khan Academy: Add Fractions With Unlike Denominators
Practice adding fractions that have different denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 5.nf Do These Add Up?
This task addresses common errors that students make when adding fractions. Aligns with 5.NF.A.2.
CK-12 Foundation
Ck 12: Arithmetic: Sums of Fractions With Different Denominators
[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of fractions with different denominators by renaming them with common denominators. Students examine guided notes, review guided...
CK-12 Foundation
Ck 12: Elem Math: Fractions With Common Denominators Word Problems
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to solve word problems where they must add and subtract fractions that have the same denominators. Includes video...