Krista King Math
Decimal Arithmetic
Teach the four operations with decimal numbers while focusing on the algorithms. The video instructor demonstrates one example each of adding, subtracting, multiplying, and dividing with decimal numbers. She explains the steps of...
Mathispower4u
Solve a One Step Equation With Decimals by Adding and Subtracting (Example)
Apply decimal operations to solving equations. Learners first observe two examples of one-step linear equations being solved. They then watch as each equation is solved by either adding or subtracting decimals using strategies they...
Curated OER
How Do You Add Decimals?
Need a review for adding decimals? Make sure to line up the decimals, write in zeros for placeholders, add the numbers, and bring down the decimal. There you have it.
Mathispower4u
Solve a One Step Equation With Decimals (Add/Subtract - Signed Decimals) (Example 2)
One step is sometimes all it takes. Pupils watch a short video to learn how to solve a one-step equation. The equation in the example requires adding signed decimals to determine the value of the variable.
Curated OER
How Do You Subtract Mixed Fractions with Different Denominators by Converting to Improper Fractions?
The first step in subtracting mixed numbers is to change them into improper fractions. Second, make sure the denominators are the same. If they are not the same, then find a common denominator. Make the proper conversions to the...
Curated OER
How Do You Add Mixed Fractions with the Same Denominator by Converting to Improper Fractions?
Work through adding mixed fractions by first converting each fraction to an improper fraction. This video details each necessary step, including how to reduce and convert your improper fraction back into a mixed fraction after you have...
Curated OER
How Do You Add Mixed Fractions with the Same Denominator by Converting to Improper Fractions?
Work through adding mixed fractions by first converting each fraction to an improper fraction. This video details each necessary step, including how to reduce and convert your improper fraction back into a mixed fraction after you have...
Socratica
Using Scientific Notation
Scientists and engineers in every field use scientific notation. The Socratica video explains what scientific notation is and why people use it. Then, it offers examples of how to convert a number into and out of scientific notation....
Curated OER
How Do You Solve an Equation With Fractions With Different Denominators Using Addition?
Find the value of a variable in an equation that has fractions with unlike denominators. Use the addition property of equality first to isolate the variable. Then find the LCD and do the math to make the denominators the same. Now they...
Curated OER
How Do You Add Mixed Fractions with Different Denominators by Converting to Improper Fractions?
The first step in adding mixed numbers is to change them into improper fractions. Secondly, make sure the denominators are the same. If they are not the same, then find a common denominator. Make the proper conversions to the numerator...
Curated OER
How Do You Add Mixed Fractions with the Same Denominator?
Mixed fractions? Oh, everyone's favorite! Not really. But these two have a common denominator so you can add the whole numbers together and then you can add the fraction parts together. Don't forget to simplify.
Curated OER
How Do You Add Mixed Fractions with the Same Denominator?
Mixed fractions? Oh, everyone's favorite! Not really. But these two have a common denominator so you can add the whole numbers together and then you can add the fraction parts together. Don't forget to simplify.
Khan Academy
Khan Academy: Adding & Subtracting Decimals Word Problem
Let's get fancy and practice adding and subtracting decimals in the same word problem.
Khan Academy
Khan Academy: Adding and Subtracting Decimals: Subtracting Decimals Word Problem
Subtracting Decimals Word Problem.
Khan Academy
Khan Academy: Adding and Subtracting Decimals: Adding Decimals
A video on how to add decimals.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Decimals Word Problems
[Free Registration/Login may be required to access all resource tools.] This is a video that shows how to solve both an addition and subtraction problem with decimals.
Virtual Nerd
Virtual Nerd: How Do You Add and Subtract Matrices With Fractions and Decimals?
Follow along with this tutorial to get some practice adding and subtracting matrices using decimals and fractions. [4:42]
Math Mammoth
Math Mammoth: Adding and Subtracting Negative Fractions and Decimals, Part 1
In this video, students are shown how to add and subtract negative fractions and decimals. This is followed by an example problem that looks at negative and positive money amounts related to a bank account. [7:09]
Math Mammoth
Math Mammoth: Adding and Subtracting Negative Fractions and Decimals, Part 2
Demonstrates how to solve some different problems involving the addition and subtraction of negative fractions and decimals. [8:02]
Khan Academy
Khan Academy: Adding & Subtracting Rational Numbers: 0.79 4/3 1/2 + 150%
Sal evaluates 0.79 - 4/3 - 1/2 + 150%.
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Adding Decimals of Different Signs
This video shows how to add positive and negative money amounts in the context of a word problem using a number line. Practice problems are available. [3:15]
PBS
Pbs: Work Keys Applied Mathematics: Level 3
Learners solve basic word problems while exploring place value and adding and subtracting numbers with decimals. Level 3 of the WorkKeys Applied Mathematics