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Subtracting two- and three-digit numbers (no regrouping)
By Khan Academy
Learn how to subtract three-digit numbers by subtracting ones, tens, and hundreds.
Dividing Integers | MathHelp.com
By MathHelp.com
This lesson covers basic subtraction in the form of subtracting whole numbers. Students learn to subtract numbers with two or more digits, such as 985 - 47. The first step is to line up the numbers vertically so that the units digits are in the same column. Next, subtract the units digits, the tens digits, and the hundreds digits. When subtracting the units digits, notice that it is not possible to subtract 7 ones from 5 ones, so 1 ten must be borrowed from the tens column, leaving 7 tens and 15 ones. Now, subtracting the units digits, 15 - 7 = 8, subtracting the tens digits, 7 - 4 = 3, and subtracting the hundreds digits, 9 - 0 = 9. So 985 - 47 = 938. Note that the answer to a subtraction problem is called the difference, so the difference of 985 - 47 is 938.
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.
Subtraction within 100
By Khan Academy
Learn how to subtract 23 from 65 by thinking about tens and ones.
Subtraction within 100
By Khan Academy
Learn how to subtract 23 from 65 by thinking about tens and ones.
Three digit-two digit subtraction with regrouping tens:grade 2
By university of Houston mathematics education
The video describes student strategies for three digit subtraction regrouping tens using concrete, pictorial and abstract models.
Subtraction | Subtracting Whole Numbers | MathHelp.com
By MathHelp.com
MathHelp.com makes learning Algebra easy with custom math courses with a teacher. Courses include Pre-Algebra, Algebra 1, Algebra 2, Introductory Algebra, Intermediate Algebra, and College Algebra. We also offer over 100 standardized test prep courses, such as COMPASS, ACCUPLACER, ASVAB, PRAXIS, and more.
Subtracting: Regrouping from zero
By Khan Academy
In Kindergarten you learned the importance of sharing, right? In math, when we lack value in a number to subtract with you borrow or regroup from a neighbor. Sometimes you borrow from the tens...but what if you have zero tens? Ha....let's watch this and learn!
Subtracting: Regrouping from zero | Addition and subtraction | Arithmetic | Khan Academy
By Khan Academy
In Kindergarten you learned the importance of sharing, right? In math, when we lack value in a number to subtract with you borrow or regroup from a neighbor. Sometimes you borrow from the tens...but what if you have zero tens? Ha....let's watch this and learn!
Subtracting: three digit numbers and regrouping | Arithmetic | Khan Academy
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: 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).
Three-Digit Subtraction with Counting Strategies: Grade 2
By university of Houston mathematics education
The video describes counting strategies using place value to subtract.
Subtracting 3-digit numbers (no regrouping) | 2nd grade | Khan Academy
By Khan Academy
Sal shows how to subtract 357-251 with place value.
[4.NBT.6-1.0] Four digit division - Common Core Standard
By Freckle education
Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division
Subtracting 1s or 10s (no regrouping)
By Khan Academy
Learn how to subtract 4 from 46 by thinking about place value.
Subtracting 1s or 10s (no regrouping)
By Khan Academy
Learn how to subtract 40 from 65 by thinking about place value.
Breaking apart 3-digit addition problems | 2nd grade | Khan Academy
By
Sal shows way to break up addition problems using place value
eSparkLearning: Adding & Subtracting within 1000 Framing Video (3NBT, Quest 3)
By espark learning videos
Adding & Subtracting within 1000 using strategies and algorithms based on place value, properties of operations