Activity
NumberNut

Number Nut: Subtraction: 1 to 10

For Students Pre-K - 1st Standards
Subtraction is about taking things away. Learn how to set up the problem and work with single-digits to 10. Then practice the skills with the two interactive subtraction activities.
Interactive
NumberNut

Number Nut: Subtraction: Subtracting From Three Digit Numbers

For Students K - 1st
Explains how to subtract from three-digit numbers, with or without regrouping.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtraction Select the Correct Sentence

For Students 2nd - 4th
[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...
Activity
Beacon Learning Center

Beacon Learning Center: School Store

For Students 1st - 3rd
Students can practice subtraction with regrouping using decimals as they make change.
Whiteboard
ClassFlow

Class Flow: Subtraction With Regrouping

For Teachers Pre-K - 1st
[Free Registration/Login Required] This flipchart reviews 2 Digit subtraction with regrouping for 2 grade students.
Activity
NumberNut

Number Nut: Subtraction: Borrowing

For Students 3rd - 5th
Explains the concept of 'borrowing' in subtraction, also known as regrouping or decomposing numbers.
Whiteboard
ClassFlow

Class Flow: Glowing in the Dark: Two Digit Subtraction

For Teachers 3rd - 5th
[Free Registration/Login Required] This flipchart teaches 2-digit subtraction with and without regrouping using fireflies as manipulatives. It is interactive and self checking.
Unit Plan
Khan Academy

Khan Academy: Subtracting 1s or 10s (No Regrouping)

For Students 2nd Standards
Practice subtracting numbers less than 100.
Unit Plan
Khan Academy

Khan Academy: Subtract 2 and 3 Digit Numbers (No Regrouping)

For Students 1st - 3rd Standards
Practice solving problems like 452 + 241. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Subtract 2 Digit Numbers (No Regrouping)

For Students 1st - 3rd
Practice solving problems like 45 - 24. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Subtract 10s and 100s (No Regrouping)

For Students 1st - 3rd
Practice subtracting 1, 10, or 100 from a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: Add and Subtract Mixed Numbers (No Regrouping)

For Students 4th Standards
Practice adding and subtracting mixed numbers.
Website
PBS

Pbs Learning Media: Figuring Out Elapsed Time

For Students 3rd - 8th
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.
Website
PBS

Pbs Learning Media: Cooking Contest

For Students 3rd - 8th
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.
Handout
Cool Math

Coolmath: Coolmath4kids: Subtracting Numbers Within 1000

For Students 3rd - 4th Standards
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.
Activity
NumberNut

Number Nut: Subtracting More Than Two Values

For Students 3rd - 5th Standards
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...
Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals

For Students 3rd - 8th Standards
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.
Unknown Type
NumberNut

Number Nut: Subtraction: Comparing Subtraction Differences (With Regrouping)

For Students 3rd - 5th Standards
Quiz where the player must calculate the answers for two subtraction problems with one- and two-digit numbers, where there is regrouping, and then must choose the correct symbol for comparing the differences (i.e., >, <, or =).
Unknown Type
NumberNut

Number Nut: Subtraction: Comparing Subtraction Differences (No Regrouping)

For Students 3rd - 5th
Quiz where the player must calculate the answers for two subtraction problems with one- and two-digit numbers, where there is no regrouping, and then must choose the correct symbol for comparing the differences (i.e., >, <, or =).
Lesson Plan
Better Lesson

Better Lesson: Cheerful Shoppers

For Teachers 2nd Standards
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.
Activity
Teaching Treasures Publications

Teaching Treasures: Year Three Math (Page 5)

For Students 3rd - 6th Standards
Sharpen your computation skills with two-digit addition, two-digit subtraction, and one-digit multiplication facts using this interactive worksheet. Learners must be familiar with multiplication facts through twelve to be successful....
Activity
Teaching Treasures Publications

Teaching Treasures: Year Four Math (Page 1)

For Students 3rd - 8th Standards
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...
Activity
Teaching Treasures Publications

Teaching Treasures: Year Four Math (Page 2)

For Students 3rd - 8th Standards
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...
Activity
Teaching Treasures Publications

Teaching Treasures: Year Four Math (Page 3)

For Students 3rd - 8th Standards
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...

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