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Unknown Type
Khan Academy

Khan Academy: Adding Two Digit Numbers (No Regrouping)

For Students Pre-K - 1st Standards
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.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtracting 2 Digit Numbers Without Regrouping

For Students 1st - 2nd Standards
[Free Registration/Login may be required to access all resource tools.] The video shows a subtraction problem with two digit numbers. The video is followed by a series of practice questions to assess student comprehension of the concept.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding Two Digit Numbers Without Regrouping

For Students 1st - 2nd Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a 2-digit addition problem without regrouping. The video is followed by practice problems.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtraction 3 Digits Minus 3 Digits

For Students 2nd - 5th
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtraction Select the Incorrect 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 does not result in the given difference. The video...
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Interactive
Calculator Soup

Calculator Soup: Long Subtraction Calculator With Regrouping

For Students 9th - 10th Standards
Do long subtraction with regrouping or borrowing. Enter whole numbers or decimal numbers to find the difference. This calculator finds the answer using long subtraction with regrouping and shows the work step by step.
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Unit Plan
Khan Academy

Khan Academy: Subtract 1 Digit Numbers With Regrouping

For Students 1st - 3rd
Practice solving problems like 46-9. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unknown Type
Khan Academy

Khan Academy: Add & Subtract Mixed Numbers With Unlike Denominators (Regrouping)

For Students 5th
Practice adding and subtracting mixed numbers with different denominators. Regrouping required.
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Unknown Type
Khan Academy

Khan Academy: Add/ Subtract Mixed Numbers W Unlike Denominators (No Regrouping)

For Students 5th
Practice adding and subtracting mixed numbers with different denominators. No regrouping required.
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Unit Plan
Khan Academy

Khan Academy: Multi Digit Subtraction

For Students 3rd - 5th Standards
Subtract whole numbers that are less than or equal to 1,000,000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Activity
NumberNut

Number Nut: Subtraction: 2 Digit Numbers

For Students 3rd - 8th Standards
Subtracting from two-digit numbers can be "as easy as pie" when you follow these instructions. Then practice the skills doing the two interactive activities; one with regrouping and one without.
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Unknown Type
NumberNut

Number Nut: Subtraction: Two Digit Subtraction With Borrowing

For Students Pre-K - 1st Standards
A quiz for practicing subtraction with two-digit numbers where there is regrouping.
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Unknown Type
NumberNut

Number Nut: Subtraction: Three Digit Subtraction With Borrowing

For Students 3rd - 5th
A quiz for practicing subtraction with three-digit numbers where there is regrouping.
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Interactive
NumberNut

Number Nut: Subtraction: Subtracting From Two Digit Numbers

For Students K - 1st Standards
Explains how to subtract from two-digit numbers, with or without regrouping.
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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.
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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.
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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...
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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.
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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.
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Activity
NumberNut

Number Nut: Subtraction: Borrowing

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

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

For Students 2nd Standards
Practice subtracting numbers less than 100.
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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.
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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.

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