CK-12 Foundation
Ck 12: Addition Sums to Ten
[Free Registration/Login may be required to access all resource tools.] The video uses a model to aide in showing how to add numbers up to ten. In addition to the video, there is a PLIX interactive challenge where students answer...
CK-12 Foundation
Ck 12: Arithmetic: Sums of Integers With Different Signs
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the sum of integers with different signs. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Arithmetic: Sums of Integers on a Number Line
[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Alabama Learning Exchange
Alex: Camp Add 'Em Up Iii
Camp Add 'Em Up is a series of lessons for first grade learners. Students will use prior knowledge of friendly numbers (two number combinations that make a "10") and "adding on" as they master the ability to add three numbers. In this...
Alabama Learning Exchange
Alex: Carlos the Centipede Is Adding Decimals!
In this instructional activity, students will work in collaborative/cooperative groups to understand adding decimals. Students will use decimal grids to represent the sum of decimals. Emphasis is on using place-value, lining up the...
Alabama Learning Exchange
Alex: Mix It Up!
By now, students have learned that fact families include both addition and subtraction facts. They have also learned that by reversing the order of the addends, they can form related addition facts with the same sum. The students will...
Alabama Learning Exchange
Alex: Cracker Math (Commutative Property)
During this lesson students will listen to the story FISH EYES: A BOOK YOU CAN COUNT ON by Lois Ehlert and use concrete objects to explore the commutative property of addition. During this lesson students will be guided through exercises...
Better Lesson
Better Lesson: Any Order
The numbers in an addition number sentence (addends) can be added in any order and the sum remains the same.
ABCya
Ab Cya: Sum of All Dice
The Sum of All Dice is a great game for children to practice addition! Swipe the screen to roll 2 through 5 dice. After adding the total on the dice, click on the correct sum listed on the chalkboard! If the dice roll out of view, simply...
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide Place Value, Rounding & Algorithms for Add'n and Subtr'n
A guide to support parents as they work with their students in place value, rounding, and algorithms for addition and subtraction.
E-learning for Kids
E Learning for Kids: Math: Olive Trees: Data & Chance
Ariel is taking a survey. Do you want to help her collect and describe data?
E-learning for Kids
E Learning for Kids: Math: Penguins: Addition
Meet Pickles the penguin and visit Antarctica for an addition adventure.
Disfruta Las Matematicas
Disfruta Las Matematicas: Hojas De Ejercicios De Sumas
This site contains worksheets dealing with sum. You may choose from simple exercises to very advanced exercises. Each instructional activity has thousands variations so you will never run out of practice material. You can see them on the...
AAA Math
Aaa Math: Place Values: Expanded Form
This site explains how to write whole numbers in expanded form. It provides games and exercises to practice the skill.
Wolfram Research
Wolfram Math World: Resultant
Defines resultant as the result of combing two or more vectors. Includes formulas and links to related terms.
NumberNut
Number Nut: Let Math Begin With Addition
This introductory addition lesson, explores the relationship between adding and number patterns using a number pyramid designed by mathematician Carl Gauss. A short lesson with interesting facts and links to related games for practicing...
NumberNut
Number Nut: Addition: Carrying
This lesson provides the rules for carrying values in addition by giving examples and the steps involved in the process.
NumberNut
Number Nut: Addition: 2 Digit Numbers
Learn how to add double-digit numbers in this lesson complete with examples, rules, and vocabulary.
NumberNut
Number Nut: More Than Two Addends
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...
ICT Games
Ict Games: Bridge Doubles
You get to practice doubling numbers up to 20. When you are correct, your car is able to cross the water safely. If you make a mistake, your car goes for a swim!
Mr. Martini's Classroom
Mr. Martini's Classroom: Adding 4 Numbers
Students practice adding four one-digit numbers. They can select the largest addend for each problem.
Mr. Martini's Classroom
Mr. Martini's Classroom: Adding 2 Digit Numbers Showing the 1 Carry
Students add two-digit numbers with these interactive flashcards. The resource demonstrates how to carry a "1" in the tens or hundreds column.
Mr. Martini's Classroom
Mr. Martini's Classroom: Addition Flashcards
Students can practice addition facts with these interactive flashcards. The problem changes color when the correct sum is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Addition Cards, Fill in the Blank
Students fill in the blank with the correct number to solve the addition problems. The problem changes color when the correct number is typed.