Using Mental Math to Subtract Videos - Free Educational Videos for Students in K - 12

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


Addition & Subtraction of Mixed Numbers: With Same Denominators


By Red River College -Tutoring

Addition & Subtraction of Mixed Numbers: With Same Denominators

Understanding angle addition formulas


By Khan Academy

Sal proves the identity cos(x+y) = cos(x)*cos(y) - sin(x)*sin(y).

Understanding angle addition formulas


By Khan Academy

Sal proves the identity sin(x+y) = sin(x)*cos(y) + cos(x)*sin(y).

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 that have fractions and decimals in them.

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������������

Four-Digit by One Digit Division (Equal Groups/Partial Quotients): Grade 4


By University Of Houstan Mathematics Education

Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value

Applying angle addition formulas


By Khan Academy

Sal finds the value of sin(7/12) by rewriting it as sin(/3+/4) and then using the sine angle addition formula.

Grade 5 Math - Division of Whole Numbers


By Lumos Learning

Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.

Grade 5 Math - Multiplaction and Division of Powers of Ten 4


By Lumos Learning

Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.

PARENTS please visit LumosTestPrep.com to learn more.
EDUCATORS please visit LumosLearning.com to learn more

Grade 6 Math - Division of Whole Numbers


By Lumos Learning

Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.

Grade 3 Math - Understanding Division


By Lumos Learning

Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.

Tags: Operations & Algebraic Thinking, whole numbers, 3.OA.A.2, standardized tests

Grade 3 Math - Relating Multiplication and Division


By Lumos Learning

Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.

Math Basics: Division


By GCFLearnFree.org

http://www.gcflearnfree.org/math Do you need help with basic math like subtraction multiplication division fractions times tables and percents? Our basic math tutorials and learning interactives make learning math easier and allow you to practice basic math skills at your own level and pace. Do you need to learn or practice the basic math skills of multiplication and division? How about some help with multiplication tables? The tips and techniques provided in this basic math tutorial make calculating multiplication and division simple easy and fun. What comes after multiplication in math? Division. Division is the opposite of multiplication. Instead of combining groups many times (like you do when you multiply) when you divide numbers you are splitting them into smaller equal groups. But you won't always have equal groups when you are dividing numbers or items -- sometimes you may have items left over. What do you do then? This lesson will help you figure that out by: • explaining the concept of dividing numbers • giving you division practice • helping you divide numbers that have remainders • showing you how to check your division If you are interested in learning more about this topic please visit our site to view the entire tutorial on our website. It includes instructional text informational graphics examples and even interactives for you to practice and apply what you've learned.

Grade 3 Math - Multiplication and Division Facts


By Lumos Learning

Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.

PARENTS please visit LumosTestPrep.com to learn more.
EDUCATORS please visit LumosLearning.com to learn more