Lesson Plan
Curated OER

Subtracting Greater Numbers

For Teachers 4th - 5th
In this subtracting greater numbers worksheet, students, with a partner, problem solve and calculate the answers to six addition equations.
Activity
NumberNut

Number Nut: More Than Two Addends

For Students 3rd - 5th
Develop strategies for adding more than two addends with this quick addition lesson. Examine how grouping numbers can help make adding multiple numbers easier. Then, practice your new skills using the related interactive games that are...
Activity
NumberNut

Number Nut: Addition: More Than Two Addends

For Students 3rd - 5th
Explains how to add three or more multi-digit numbers.
Lesson Plan
Better Lesson

Better Lesson: Any Order

For Teachers 2nd Standards
The numbers in an addition number sentence (addends) can be added in any order and the sum remains the same.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Buttons Odd and Even

For Teachers 2nd - 3rd Standards
The purpose of this task is for learners to determine whether a set of objects (up to 20) has an odd or even number of elements. Students will also write an equation to express an even number as a sum of two equal addends and an odd...
Activity
Texas Instruments

Texas Instruments: Let Me Count the Ways

For Teachers Pre-K - 1st
In this activity, students will make predictions about the number of ways to make eleven with two or more addends. They will investigate patterns with these addends with the help of manipulatives and the calculator.
Unknown Type
Other

Project Happy Child: Free Addition Worksheets

For Students Pre-K - 1st Standards
2000 basic addition worksheets are available at this web site. They can be printed and used for a variety of practice purposes. Some helpful hints are included to avoid mindless practice that could quickly become counter productive.