CK-12 Foundation
Ck 12: Elem Math: Subtracting 2 Digit Numbers Without Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a two-digit subtraction problem without regrouping. The video is followed by additional problems for students to practice the skills...
Khan Academy
Khan Academy: Subtraction Within 1000
In this exercise, students practice subtraction within 1000. Students receive immediate feedback and have the opportunity to get hints, watch video tutorials, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals
If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
Khan Academy
Khan Academy: Regrouping When Adding One Digit Numbers
In this exercise, students practice regrouping when adding one-digit numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Adding Two Digit Numbers (No Regrouping)
In this exercise, students practice adding two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Elem Math: Subtracting 2 Digit Numbers With Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to subtract two-digit numbers using regrouping. The video is followed by additional problems for students to practice the skills discussed in...
CK-12 Foundation
Ck 12: Elem Math: Subtraction 3 Digits Minus 3 Digits
[Free Registration/Login may be required to access all resource tools.] The video shows how to subtract 3-digit numbers without regrouping. The video is followed by additional problems for students to practice the skills discussed in the...
CK-12 Foundation
Ck 12: Elem Math: Subtraction Select the Incorrect Sentence
[Free Registration/Login may be required to access all resource tools.] The video shows how to use regrouping to solve a series of multi-digit subtraction problems to determine which one does not result in the given difference. The video...
AAA Math
Aaa Math: Subtracting Four Digit Numbers
Demonstrates how to subtract two 4-digit numbers when there is regrouping. The explanation is followed by an interactive where students can practice this skill.
NumberNut
Number Nut: Subtraction: Borrowing
Explains the concept of 'borrowing' in subtraction, also known as regrouping or decomposing numbers.
PBS
Pbs Learning Media: Figuring Out Elapsed Time
In this video segment from Cyberchase, through addition and regrouping in base sixty, Matt helps Digit figure out what time his CyberSouffle will be done.
CK-12 Foundation
Ck 12: Elem Math: Subtraction Select the Correct Sentence
[Free Registration/Login may be required to access all resource tools.] The video shows how to use regrouping to solve a series of multi-digit subtraction problems to determine which one results in the given difference. The video is...
Better Lesson
Better Lesson: Cheerful Shoppers
Second graders love to shop! Students will use their own shopping list to compose a word problem using addition and subtraction with and without regrouping, in order to help them better understand how to problem solve.
ClassFlow
Class Flow: Glowing in the Dark: Two Digit Subtraction
[Free Registration/Login Required] This flipchart teaches 2-digit subtraction with and without regrouping using fireflies as manipulatives. It is interactive and self checking.
PBS
Pbs Learning Media: Cooking Contest
In this Cyberchase video segment, Matt uses subtraction to help Digit figure out how much time he has left in a cooking contest with Hacker.
Teaching Treasures Publications
Teaching Treasures: Year Four Math (Page 1)
This interactive worksheet combines all four operations. The focus is on addition and subtraction fact through one hundred and basic multiplication and division facts. This easy to navigate activity offers learners immediate feedback and...
Teaching Treasures Publications
Teaching Treasures: Year Four Math (Page 2)
This interactive worksheet combines all four operations. The focus is on three-digit addition and subtraction and basic multiplication and division facts. This easy to navigate activity offers learners immediate feedback and would be...
Teaching Treasures Publications
Teaching Treasures: Year Four Math (Page 3)
Build your computation skills using this interactive worksheet that focuses on all four operations including three-digit addition and subtraction and basic multiplication and division facts. This is an easy to navigate tool and learners...
Teaching Treasures Publications
Teaching Treasures: Year Two Math (Page 3)
Review basic addition and subtraction facts using this interactive worksheet. Problems are presented in horizontal format and offer immediate feedback. With only ten problems, this worksheet could also be used for a quick review or short...
Homeschool Math
Homeschool Math: Subtracting Mixed Numbers With Like Fractional Parts
A lesson about subtracting mixed numbers with like fractional parts using the strategies for the subtraction of regrouping and subtracting in parts (piece by piece).
Teaching Treasures Publications
Teaching Treasures: Year Four Timed Mental Math (Page 2)
Improve your computations skills in all four operations with this timed interactive worksheet. Solve ten problems in five minutes or less. Problems are presented in horizontal format and answers can be checked immediately. This worksheet...
NumberNut
Number Nut: Subtracting More Than Two Values
Get the facts on how to subtract more than two values in this short subtraction lesson. This lesson offers step-by-step examples, suggested strategies and shortcuts, and links to related interactive games. Both games are fast-paced and...
Cool Math
Coolmath: Coolmath4kids: Subtracting Numbers Within 1000
Step-by-step tutorial showing how to subtract numbers less than 1000 in place value columns with and without regrouping. Includes sample problems to try.
Cool Math
Coolmath: Coolmath4kids: Subtracting Numbers Within 100
Short tutorial showing how to subtract using two-digit numbers in tens and ones columns without regrouping.