## Adding - CCSS 2.OA.B.2, 2.NBT.B.5, 2.NBT.B.6, 2.NBT.B.8

## Links verified on 6/19/2015

Exercises and Games

- Abacus Addition -This applet explores the use of an abacus model for representing numbers and for performing addition.
- Adding Numbers - [From FreeMathTest] Choose level of difficulty or customize for any number range and then select the number of questions. Self-checking.
- Adding 3-Digit Numbers - (Grades 2-4) Step-by-step exercises.
- Alien Addition - Fire at the spaceships the match the answer.
- Addition: 0- 12 - Addition practice problems. Try adding numbers to 18 || numbers to 50 || numbers to 100.
- Addition Surprise - Fill in sums in the addition grid to complete a surprise picture.
- Ambleweb Addition Machine - Choose from 3 levels and practice addition.
- Are You a Math Magician? - Choose a level and select addition. Try to do as many questions in the time allotted.
- Circus Fun - Web lesson with practice problems - adding up to three digits with regrouping.
- Connect 4 - you play the computer in this game
- Connect Four - as Flash game from Cool Math
- Connect Four in a Row - line up four discs in a row, column, or diagonally before your opponent does
- Four in a Line - like the old Connect-Four game
- Ghost Blasters II - Two-player game to practice addition skills. Choose sums from 5-99 and "blast" a pair of ghosts whose sum equals the sum specified.
- Hidden Picture - An answer is provided and you must select the problems that equal the answer to reveal a hidden picture.
- Math Baseball - Practice numbers less than 10. Fill in the missing number to complete the addition problem. Click on "harder" for more of a challenge.
- Math Facts - Select
additionand choose to practice sums to 10, sums to 12, or sums to 20.- Mental Math - Select
additionas the topic and choose from 3 levels: Level 1 = one-digit numbers, Level 2 = two-digit numbers, Level 3 = up to four-digit numbers.- Number Eaters - Select
additionand begin playing. Eat the problems that add up to the sum provided, but careful not to get eaten by the number eater!- SpacyMath - Use only your first name to sign in. Select "Addition" to play game and solve the problems to blast the spaceship. You can also choose to practice subtraction, multiplication, and division skills.
- Speed Grid Challenge: Addition - Set the number of questions (2-99) and the time limit (1-10). Answer question set by clicking on two numbers that complete the sentence.
- Sum Fun - Use a sum chart to practice addition facts (sums up to 18).
- Sum Sense: Addition - Single-digit addition. Set the number of questions (2-99) and the time limit (1-10). Drag the numbered cards to correctly complete the sentence.
- Techno Tortoise - Help the turtle get o the right number on the number line by solving each problem making only jumps of +10, +5, +1, -1.
- Test the Toad - Add (or subtract) numbers from 1 to 15 by clicking on the numbered person.
- Tic-Tac-Toe Squares - From Fun Brain. Practice adding numbers less than 50.
- The Timernator - Select math facts 0-10 or 0-36. Race against the clock and add as fast as you can in 60 seconds.

Index and Databases of Activities

- Adding for K-2 - Numerous activities on "Adding Facts to 20" and "Adding 2-Digit Number".
- Adding Numbers - Twenty-three lessons and exercises for Grade 2.
- Addition Games - (Grades 1-3) Huge list of addition games to select from to help students learn this math skill.
- Second Grade Addition - Great assortment of activities for students to practice addition skills. Includes multiple-choice activities as well as fill-in-the blank.

Practice Tests and Quizzes

- Add 2 two-digit numbers so that the total is within 100 - Online quiz that is self checking.
- Add four two-digit numbers - Online quiz that is self checking.
- Add three two-digit numbers - Online quiz that is self checking.
- Add two two-digit numbers - Online quiz that is self checking.
- Add a three-digit and two-digit number so that the total is within 1000 -Online quiz that is self checking.
- Add Two 3-Digit Numbers Within 1000 - Online quiz that is self checking.
- Add Two Numbers Within 1000 - Online quiz that is self checking.
- Mentally add 100 to a number between 100 and 900 -Online quiz that is self checking.
- Mentally add 10 to a number between 100 and 900 - Online quiz that is self checking.
- Arithmetic Quizzes - Make your own addition quizzes and choose the type of problems: simple, inverted, long, and/or triplet problems.
- The Art of Math - (K-3) Create your own math tests. Click on "Create Challenge" and set the number of problems, problem type, and the range of numbers to generate an endless number of challenges. (Can also be used for subtraction, multiplication, or a mixture of problem types)

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