Decimal Addition Videos - Free Educational Videos for Students in K - 12

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This page provides a list of educational videos related to Decimal Addition. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Decimal Addition.


One-step addition and subtraction equations with fractions and decimals


By Khan Academy

Learn how to solve one-step addition and subtraction equations that have fractions and decimals in them.

Addition and subtraction with significant figures | Decimals | Pre-Algebra | Khan Academy


By Khan Academy

This video shows us the rules for adding and subtracting measurements to show our level of accuracy. Note that the rules for addition/subtraction with significant figures are VERY different than the rules for mulitplication/division. Think about which number is the most precise!

One-step addition and subtraction equations with fractions and decimals


By Khan Academy

Some quick examples to practice solving a variety of one step equations. All 4 operations (add, subtract, multiple, divide) are paired with variables.

One-step addition and subtraction equations with fractions and decimals


By Khan Academy

Learn how to solve one-step addition and subtraction equations by adding or subtracting the same thing from both sides of the equation.

One-step addition and subtraction equations with fractions and decimals


By Khan Academy

Learn how to solve this equation: a + 5 = 54������������

Relate addition and subtraction


By Khan Academy

See the relationship between 2+3=5, 5-2=3, and 5-3=2.

Addition and subtraction trig identities


By Khan Academy

Sal evaluates the cosine of twice an������������angle whose right triangle is given. To do this, he must use the cosine double-angle formula.

Addition and subtraction trig identities


By Khan Academy

Sal evaluates the cosine of the sum of 60������������ and another angle whose right triangle is given. To do this, he must use the cosine angle addition formula.

Addition and subtraction trig identities


By Khan Academy

Sal reviews all the different trigonometric angle addition identities: sin(a+b), sin(a-c), cos(a+b), cos(a-b), cos(2a), and sin(2a).

More examples of addition and subtraction of polynomials | Algebra II | Khan Academy


By Khan Academy

This instructor in this video, Sal Khan, discusses adding and subtracting polynomials. In an easy, conversational tone, the instructor explains processes clearly. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. The student or educator may want to open the video to 'full screen' as the instructor is using a black background and the writing is small.

ADDITION & SUBTRACTION OF RATIONAL EXPRESSIONS WITH DIFFERENT DENOMINATORS (ANIMATION)


By Jerry Llevada

ADDITION & SUBTRACTION OF RATIONAL EXPRESSIONS WITH DIFFERENT DENOMINATORS (ANIMATION)

Subtracting 1 vs. subtracting 10 | Addition and subtraction within 100


By Khan Academy

Sal talks about the difference between subtracting 1 and subtracting 10.

Missing numbers in addition and subtraction | 2nd grade | Khan Academy


By Khan Academy

Sal solves missing number in problems like 73 = ___ + 57.

Addition and subtraction with number lines


By Khan Academy

Sal figures out which number line matches up with a 2-digit addition or subtraction problem.

Addition & Subtraction of Mixed Numbers: With Same Denominators


By Red River College -Tutoring

Addition & Subtraction of Mixed Numbers: With Same Denominators

Matrix addition and subtraction


By Khan Academy

Sal defines what it means to add or subtract matrices. He shows a few examples and discusses some important properties of matrix addition and subtraction.

Solving One Step Equations By Addition and Subtraction


By Mathispower4u

Video about solving one step equations by addition and subtraction.

Integer addition and subtraction: find the missing value


By Khan Academy

Sal solves more missing value problems: 4 = -8 - __ ������������and ������������__ - (-2) = -7 ������������and ������������-4 = __ - 9