Unit Plan
Scholastic

Scholastic: Study Jams! Math: Addition and Subtraction: Additon With Regrouping

For Students K - 1st Standards
Solve problems step by step by addition with regrouping.
Handout
Cool Math

Coolmath: Coolmath4kids: Adding Numbers Within 100 With Regrouping

For Students 2nd Standards
Demonstrates how to regroup when adding 2-digit numbers.
Unit Plan
Scholastic

Scholastic: Study Jams! Math: Addition and Subtraction: Without Regrouping

For Students K - 1st Standards
Solve word problems with addition and subtraction without regrouping. Then test your knowledge.
Website
Cool Math

Coolmath: Coolmath4kids: Addition

For Students K - 1st Standards
A set of seven short tutorials on addition. Begins with a basic introduction to how addition works, and covers topics such as using a number line, place value, and regrouping.
Unknown Type
Khan Academy

Khan Academy: Regrouping When Adding One Digit Numbers

For Students Pre-K - 1st Standards
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.
Lesson Plan
ArtsNow

Arts Now Learning: Addition Race [Pdf]

For Teachers 2nd
For this lesson, 2nd graders will complete math problems with groups to reinforce the concept of completing addition using regrouping.
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.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Addition: 3 Digits

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on adding 3-digit numbers with regrouping. [1:32]
Handout
Quia

Ixl Learning: Adding Mixed Numbers

For Students 3rd - 5th Standards
Brush up on your math skills pertaining to adding mixed numbers then try some practice problems to test your understanding.
Unknown Type
Khan Academy

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

For Students Pre-K - 1st Standards
In this exercise, students practice adding 1s or 10s (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Unit Plan
Khan Academy

Khan Academy: Add and Subtract Mixed Numbers 2 (With Regrouping)

For Students 3rd - 5th
Practice adding and subtracting mixed numbers with common (like) denominators. Some items require regrouping. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Elementary Addition

For Students Pre-K - 1st Standards
This resource offers six brief arithmetic lessons: sums less than ten, sums of ten, and sums between ten and twenty, doubling, zero, and a set of general practice problems.
Interactive
Doina Popovici

Math Play: Addition With Regrouping Math Racing Game

For Students 2nd - 4th
Race to a win with this math game where students have to do addition with regrouping.
Unit Plan
Khan Academy

Khan Academy: Subtracting Two Digit Numbers (No Regrouping)

For Students Pre-K - 1st Standards
In this exercise, students practice subtracting two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to watch a tutorial video, get hints, and try questions repeatedly.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Overview of Addition Sums to 100 Word Problems

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video explains two addition problems one with regrouping and the other without regrouping.
Unit Plan
CK-12 Foundation

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

For Students 2nd - 4th
[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.
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.
Unknown Type
Khan Academy

Khan Academy: Regrouping: Two Digit Number Minus One Digit Number

For Students Pre-K - 1st Standards
In this exercise, students practice regrouping with two-digit number minus one-digit number. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding Two Digit Numbers With Regrouping

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video models how to add two-digit numbers using regrouping. The video is followed by practice problems.
Activity
Wolfram Research

Wolfram Math World: Addition

For Students 6th - 8th Standards
MathWorld provides a detailed definition of addition.
Unit Plan
Khan Academy

Khan Academy: Regroup When Adding 1 Digit Numbers

For Students K - 1st
Practice adding numbers like 45+8. 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 & Subtract Mixed Numbers With Unlike Denominators (Regrouping)

For Students 5th
Practice adding and subtracting mixed numbers with different denominators. Regrouping required.
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.
Activity
NumberNut

Number Nut: Addition: 3 Digit Numbers

For Students 3rd - 8th
Three digit addition requires working from left to right and may require carrying. Follow the steps in the examples and then practice the skills with the two interactive activities.

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