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Addition and subtraction with number lines | 2nd grade | Khan Academy
By Khan Academy
Sal figures out which number line matches up with a 2-digit addition or subtraction problem.
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.
Subtracting 3-digit numbers (no regrouping) | 2nd grade | Khan Academy
By Khan Academy
Sal shows how to subtract 357-251 with place value.
Subtracting: three digit numbers and basic regrouping
By Khan Academy
Subtracting multi-digit numbers can be a little confusing when the top digits are smaller than the bottom ones. Let's look at regrouping together. It will help!
Subtracting: three digit numbers and regrouping
By Khan Academy
When we don't have enough of something, we sometimes borrow it. Same in math! When there aren't enough tens (or hundreds, etc) to subtract with, we can borrow (also called regrouping).
Subtracting two- and three-digit numbers (no regrouping)
By Khan Academy
Sal shows how to subtract 357 - 251.
Subtracting two- and three-digit numbers (no regrouping)
By Khan Academy
Learn how to subtract three-digit numbers by subtracting ones, tens, and hundreds.
Subtracting two-digit numbers (no regrouping)
By Khan Academy
Learn how to subtract 23 from 65 by thinking about tens and ones.
Subtracting two-digit numbers (no regrouping)
By Khan Academy
Learn how to subtract 31 from 64 by thinking about tens and ones.
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.
Fractions are Division
By mathantics
A fraction is just a division problem written like a number. This video also reviews the parts of a fraction and introduces the idea of decimals.
Introduction to Division
By northstar15
Learn the basics of division including vocabulary and how to solve simple division problems. A teacher is using a whiteboard to explain the process as well as the vocabulary. He demonstrates two ways to write these division problems. Sound quality is poor.
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.
Dividing numbers: long division with remainders | Arithmetic | Khan Academy
By Khan Academy
Here we go with more long division practice. Ever wonder why we call it long division? What's long about it, anyway?
Total seats in a theater | Multiplication and division
By Khan Academy
Solve a two-step word problem by drawing a picture and creating an equation.