Lesson Plan
Curated OER

Junk Yard Math

For Teachers 3rd
Third graders explore the process of place value and subtraction through regrouping and borrowing exercises. Several activities using manipulatives are utilized in the lesson.
Lesson Plan
Curated OER

Dividing by 3's

For Teachers 3rd
Third graders review and practice strategies for solving division problems. In this division by 3's lesson, 3rd graders play games, use an interactive whiteboard, create flashcards, and solve word problems. 
Lesson Plan
Curated OER

Regrouping With Remediation

For Teachers 4th
Fourth graders complete multiplication, addition, and subtraction problems that all contain regrouping. In this regrouping lesson plan, 4th graders complete worksheets not provided.
Unit Plan
Khan Academy

Khan Academy: Adding Negative Numbers

For Students 6th - 8th
Practice adding positive and negative single-digit numbers. 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 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.
Unit Plan
Khan Academy

Khan Academy: Add Within 100

For Students 1st - 3rd Standards
Practice adding two-digit numbers. All numbers in these problems are 100 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Interactive
Quia

Quia: Add Your Way to a Million (Rags to Riches)

For Students 1st - 5th Standards
You can earn a million bucks playing this addition game. A succinct multiple choice game with hints, if you need them. Contains simple computation problems mixed with a few word problems. Must be able to add up to the millions place (one...
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.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding Multiple One Digit Numbers Word Problems

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video describes how to add multiple 1-digit numbers from a word problem. The video is followed by additional 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: Adding and Subtracting Three or More Numbers

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students are given word problems where they have to add or subtract 3 or more 1-digit numbers.
Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Adding 2 Digit Numbers Showing the 1 Carry

For Students 3rd - 5th
Students add two-digit numbers with these interactive flashcards. The resource demonstrates how to carry a "1" in the tens or hundreds column.
Unknown Type
Khan Academy

Khan Academy: Subtraction Within 100

For Students 1st - 3rd Standards
In this exercise, students practice subtraction within 100. Students receive immediate feedback and have the opportunity to watch a video tutorial, get hints, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...
Activity
NumberNut

Number Nut: Multiplication: 3 Digit Numbers

For Students 3rd - 5th Standards
Did you know that you need to add a zero at the end of a numbers when you multiply two or more times; one zero for the tens number and two zeros for the hundreds.? Review the examples and then practices your skills with the two...
Unit Plan
Khan Academy

Khan Academy: Subtract Within 20

For Students K - 1st Standards
Practice subtracting. All numbers in these problems are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.
Unknown Type
Lizard Point Quizzes

Lizard Point: Subtraction Practice

For Students Pre-K - 1st Standards
At this site from Lizard Point Consulting, you can practice several different levels of difficulty of subtraction problems that use 1-digit numbers all the way up to 3-digit number subtraction problems that require regrouping. You can...