Students practice subtracting numbers up to nine. If the correct answer is chosen, the face smiles.
In the lesson on adding and subtracting within 5, students will use five frames to add and subtract. They will also review key vocabulary terms, like sum, difference, and equal sign.
In this lesson, students will use number lines and ten frames to solve subtraction word problems within 10.
Review or learn the basics of single-digit subtraction in this concise lesson that has related vocabulary and strategies for solving subtraction problems. This lesson includes lots of examples and links for two interactive subtraction games. Both games are fast-paced and give immediate feedback to your responses.
Do you need practice learning and remembering algebra vocabulary terms? This concentration game is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if you are correct.
Use this Web site to practice finding equivalent fractions using a matching game format. CCSS.Math.Content.3.NF.A.3.a Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
This video tutorial reviews how to recognize the difference of two squares, which is useful for understanding polynomial identities. Includes short multiple-choice quiz. [1:33]
This resource provides detailed information about the sea lion, as well as several pictures and an audio clip. [1:34]
Students learn about the special product rule for Product of the Sum and Difference of Two Terms, which is useful for understanding polynomial identities. Includes short multiple-choice quiz. [3:30]
The video lesson provides proof of the Binomial Squared of a Difference special product rule, which is useful for understanding polynomial identities. Includes short multiple-choice quiz. [3:39]
Download these worksheets to sharpen your subtraction skills. Sheets focus on single and multi-digit subtraction, subtracting across zeros and calculating complements, and subtracting in other base number systems.
When we measure things, most people are only worried about how accurate, or how close to the actual value, they are. Looking at the process of measurement more carefully, you will see that there is another important consideration: precision. Matt Anticole explains what exactly precision is and how can help us to measure things better. [4:52]
Here you'll learn to rewrite tangent functions with addition or subtraction in their arguments in a more easily solvable form.
A free CK-12 account is required to view all materials.
Looks at finding the direction and magnitude of vectors and breaking vectors into component parts.
A free CK-12 account is required to view all materials.
Watch this tutorial to learn how to subtract complex numbers and see a great example. [3:12]
To subtract polynomials, distribute the negative sign to the second polynomial and then combine like terms. Watch this tutorial to see how it's done. [2:07]
This brief Wikipedia encyclopedia article explains the difference between primary and secondary sources.