Curated Video
Finding the Area of Polygons by Decomposing
In this video, the teacher explains how to find the area of polygons by breaking them down into familiar shapes such as triangles, rectangles, parallelograms, and trapezoids.
Curated Video
Dividing Two-Digit Numbers by Two-Digit Numbers, and Three-Digit Numbers by Two-Digit Numbers with Remainders
Mr. Addit reviews the process for dividing 2-digit numbers by 2-digit numbers and 3-digit numbers by 3-digit numbers with remainders.
Curated Video
Regrouping and Carrying
The video “Regrouping and Carrying” explains how to use regrouping and carrying as part of the standard algorithm for adding two- and three-digit numbers.
Curated Video
Multiplying Three-Digit Numbers by Two-Digit Numbers with Regrouping
Mr. Addit reviews multiplying 2-digits by 2-digits with regrouping. He then demonstrates the method for multiplying 3-digits by 2-digits with regrouping and stresses the importance of being careful about putting numbers in their proper...
Curated Video
Regrouping and Carrying
Mr. Addit reviews the terms regrouping and carrying. He then shows examples of adding two two-digit numbers and two three-digit numbers to give examples of regrouping and carrying.
Curated Video
Review for You: Regrouping
Mr. Addit reviews the method of using regrouping and carrying to add 2, 2-digit numbers and 2, 3-digit numbers. He reviews the method of regrouping and borrowing to subtract 2, 2-digit numbers and 2, 3-digit numbers.
Curated Video
Review for You: Multiplying with Regrouping
Mr. Addit reviews multiplication of 2 digits by 1 digit, 3 digits by 1 digit, 2 digits by 2 digits, and 2 digits by 3 digits.
Homeschool Pop
Double-Digit Addition for Kids
Learn double-digit addition and regrouping in this video for kids! You will discover how to add bigger numbers together in this exciting math video. We review basic addition and show how simple and fun adding large numbers can be! 💙...
Curated Video
Review for You: Division
Mr. Addit reviews division of 2 digits by 1 digit, 2 digits by 2 digits, and 3 digits by 2 digits. He demonstrates division problems with remainders, and checks his division work by using multiplication.
Curated OER
Singapore Math: Grade 3a, Unit 2 (Part 3)
Using three-digit numbers, this video discusses the process used to add and subtract with regrouping. The instructor also focuses on determining when and when not to regroup. It describes precisely what is happening when a problem...
Khan Academy
Khan Academy: Adding 3 Digit Numbers (No Regrouping)
Sal visually demonstrates how to add 327 + 251 (without regrouping) using place value. Includes a video, transcript, and question and answer section. [2:39]
Khan Academy
Khan Academy: Using Place Value to Add 3 Digit Numbers: Part 1
Learn to use regrouping, or carrying to add 536+398.
Khan Academy
Khan Academy: Adding 3 Digit Numbers
Learn to use regrouping, or carrying to add 709+996, 373+88, and 149+293.
Khan Academy
Khan Academy: Using Place Value to Add 3 Digit Numbers: Part 2
Learn to use regrouping to add 536+398.
Khan Academy
Khan Academy: Multiplying 3 Digit by 1 Digit (Regrouping)
Learn to multiply a 3-digit number by a 1-digit number using regrouping. In this video, we will multiply 7x253.
Khan Academy
Khan Academy: Subtracting 3 Digit Numbers (No Regrouping)
Sal shows how to subtract 357-251 (without regrouping) using place value. Includes a video, transcript, and question and answer section. [2:56]
Khan Academy
Khan Academy: Worked Example: Subtracting 3 Digit Numbers (Regrouping Twice)
Demonstrates how to subtract 3-digit numbers when there is regrouping in the ones and the tens places. The example used is 913 - 286. [3:47]
Khan Academy
Khan Academy: Worked Example: Subtracting 3 Digit Numbers (Regrouping)
Learn to use regrouping (borrowing) and place value to subtract 971-659.
Khan Academy
Khan Academy: Subtracting 3 Digit Numbers (Regrouping)
Sal uses regrouping (borrowing) and place value to subtract 629-172.
Khan Academy
Khan Academy: Worked Example: Subtracting 3 Digit Numbers (Regrouping Twice)
Sal using regrouping (borrowing) to subtract 913-286.
Khan Academy
Khan Academy: Worked Example: Subtracting 3 Digit Numbers (Regrouping From 0)
Demonstrates how to subtract 3-digit numbers when the first number has a zero in the tens place. The example used is 301 - 164. [2:23]
Khan Academy
Khan Academy: Worked Example: Subtracting 3 Digit Numbers (Regrouping From 0)
Sal has to borrow from a 0 to subtract 301-164.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition (Sums to 1,000)
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to add two 3-digit numbers vertically with no regrouping. [1:04]
Khan Academy
Khan Academy: Subtracting a 1 Digit Number With Regrouping
Demonstrates how to solve 35 - 8 using drawings of base ten cubes to show the regrouping of ones and tens. [3:11]
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