OpenStax
Open Stax: Vector Addition and Subtraction: Analytical Methods
In this interactive students will begin to understand the rules of vector addition and subtraction using analytical methods. They will apply analytical methods to determine vertical and horizontal component vectors.
CK-12 Foundation
Ck 12: Arithmetic: Whole Number Subtraction
[Free Registration/Login may be required to access all resource tools.] Write and solve vertical subtraction problems with whole numbers.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Subtraction
[Free Registration/Login may be required to access all resource tools.] Find the difference of decimals by subtracting vertically.
Knowledge Share
Super Kids: Subtraction Worksheet Creator
Create your own subtraction math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and maximum values...
Knowledge Share
Super Kids: Addition and Subtraction Worksheet Creator
Create your own addition/subtraction math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and...
Texas Education Agency
Texas Gateway: 3.3 Vector Addition and Subtraction: Analytical Methods
By the end of this section, you will be able to understand the rules of vector addition and subtraction using analytical methods, apply analytical methods to determine vertical and horizontal component vectors, and apply analytical...
Varsity Tutors
Varsity Tutors: Aplusmath: Decimal Subtraction Worksheets
Create customized decimal subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can...
Varsity Tutors
Varsity Tutors: Aplus Math: Subtraction Worksheets
Create customized subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can also be...
Varsity Tutors
Varsity Tutors: Aplus Math: Subtraction Flashcards
Practice basic subtraction facts using online flashcards. The game keeps track of how many of the attempted flashcards you get correct, and lets you know your percentage. Did you input an incorrect answer? Don't worry, a message with the...
CK-12 Foundation
Ck 12: Algebra: Subtraction of Polynomials
[Free Registration/Login may be required to access all resource tools.] Subtract polynomials vertically and horizontally.
NumberNut
Number Nut: Subtraction: Two Digit Subtraction With No Borrowing
A quiz for practicing vertical subtraction with two-digit numbers where there is no regrouping.
NumberNut
Number Nut: Subtraction: 3 Digit Numbers
A brief lesson on subtracting from three-digit numbers that includes detailed examples, rules, and further explanation of borrowing.
Other
Idea House: Clinton Administration Challenges Vertical Mergers
An article from 1999 defining "vertical merger" which explains the difference between Clinton's treatment of such mergers as compared to George H.S. Bush and Ronald Reagan in their administrations.
Alabama Learning Exchange
Alex: Polynomial Subtraction
Students will review the meaning of vocabulary relevant to subtracting polynomials such as opposites and the definition of subtract. They will be presented with examples of subtracting polynomials both vertically and horizontally. They...
Physics Classroom
The Physics Classroom: Image Formation by Lenses
This lesson explains what lenses are, the different between a converging and diverging lens, the difference between a double convex and double concave lens, and gives definitions for terms related to lenses.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Addition
[Free Registration/Login may be required to access all resource tools.] Find sums of decimals by adding vertically.
Purple Math
Purplemath: Adding Polynomials
Demonstrates how to add polynomials using both the horizontal and vertical formats.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
ABCya
Ab Cya: Turkey Touchdown
What's more Thanksgiving than turkey and football? What about turkeys playing football? Turkey Touchdown is a great way for kids to celebrate the holiday and practice their math facts. Kids will choose a level of difficulty, and then...
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Asintotas
This interactive unit shows you the relationship between functions and their graphs. You can practice how to calculate the limit of the function as x approaches plus or minus infinity.
Math Words
Math words.com: Parabola
The definition for what a parabola is and an explanation of the difference between a parabola and u-shaped curve is given. Also provides illustrations of what a vertical and horizontal parabola look like.
CK-12 Foundation
Ck 12: Algebra: Addition of Polynomials
[Free Registration/Login may be required to access all resource tools.] Adding polynomials vertically and horizontally.
Khan Academy
Khan Academy: Area Between Curves
By integrating the difference of two functions, you can find the area between them. Created by Sal Khan.
DLTK
Kidzone: Math Worksheets
This site provides printable worksheets for basic math operations. Organized by grade level, concept & theme.