Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtracting 2 Digit Numbers With Regrouping

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a two-digit subtraction problem with regrouping. The video is followed by additional problems for students to practice the skills...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtracting 2 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 two-digit subtraction problem without regrouping. The video is followed by additional problems for students to practice the skills...
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.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtracting 2 Digit Numbers With Regrouping

For Students 1st - 2nd
[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...
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.
Activity
Khan Academy

Khan Academy: Multiply 2 Digit Numbers

For Students 3rd - 5th Standards
Multiply 2-digit numbers by 2-digit numbers. Regrouping (carrying) needed. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Subtraction 3 Digits Minus 2 Digits

For Students 2nd - 5th
[Free Registration/Login may be required to access all resource tools.] The video describes how to use regrouping when subtraction a two-digit number from a three-digit number. The video is followed by additional problems for students to...
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.
Lesson Plan
Other

Nearpod: Subtraction With Regrouping: Two Digit

For Teachers 2nd - 4th Standards
In this lesson on subtraction, students will use the break apart strategy, draw a model, or the standard algorithm to subtract 2-digit numbers.
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 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.
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.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Overview of Subtraction Numbers to 100

For Students 1st - 2nd Standards
[Free Registration/Login may be required to access all resource tools.] The video explains two, two-digit subtraction problems one with regrouping and the other without regrouping.
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...
Unit Plan
Khan Academy

Khan Academy: Add 2 Digit Numbers (No Regrouping)

For Students K - 1st Standards
Practice solving problems like 24 + 45. 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.
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 Timed Mental Math (Page 2)

For Students 3rd - 5th Standards
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...
Handout
Cool Math

Coolmath: Coolmath4kids: Adding Numbers Within 100

For Students 2nd - 3rd Standards
A step-by-step tutorial showing how to add 2-digit numbers in place value columns without regrouping. Includes exercises to try. CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000
Handout
Cool Math

Coolmath: Coolmath4kids: Subtracting Numbers Within 100

For Students 2nd - 3rd Standards
Short tutorial showing how to subtract using two-digit numbers in tens and ones columns without regrouping.
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...
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.
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
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...