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Develop fluency at recalling basic addition facts and related subtraction facts. 0206.2.7

## Links verified on 11/28/2009

Adding- 1-3, 2-5, 3-8, 5-10, 5-20, 10-99, customize for any number range - from FreeMathTest

- Worksheets to print are also available supporting instruction of this topic
- Arithmetic Four - (A game like Connect Four) A pair of students must answer arithmetic questions (addition, subtraction, multiplication, division) to earn a piece to place on the board. Parameters: time limit, difficulty level, types of questions
- Addition Surprise - fill in sums in the addition grid to complete a surprise picture
- Ambleweb Addition Machine - select Level 1 to practice this spi
- Ambleweb Subtraction Machine - Students choose a skill level, type the answer, and then check for correctness.
- Are You a Math Magician? - Two levels of practice with several operations are available; addition, subtraction, multiplication or division. Mixed practice is also available; addition and subtraction, multiplication and division, or a mix of all four. Select the level appropriate for this spi. Addition game & Subtraction game also available
- Bowling Subtraction - bowl down pins by answering subtraction problems
- Build a Bug - Answer these computations and build a bug! (mixed operations including some division)
- Checking Subtraction - Students explore the inverse relationship of addition and subtraction.
- Circus Fun - add up to three digits with regrouping
- Fill-in Equation - supply the missing number in subtraction equations
- Ghost Blasters II (addition practice) - (two players) Students must "blast" a pair of ghosts whose sum equals some number specified before the game begins. Sums from 5 to 99 can be set.
- Hidden Picture - the answer is given and you must select the problem to reveal a hidden picture. Good for a pair of students together
- It's A Fact - practice basic subtraction facts
- Math Baseball - Complete the Number Sentence. - Addition - Numbers less than 10
- Math Baseball - Subtraction - Numbers less than 5
- Math Facts - timed math facts, or select practice mode without the timer
- Math Facts from Harcourt School - (K-3) Content available at the site:
Addition and Subtractionsums and differences to 10, 12, and 20; Multiplication and Division facts to 5, to 10, to 12. Verbal instructions are included and students can select timed or un timed. (30 facts)- Math Mastery - select operation and practice your facts
- Mad Math Minutes - This is a great way to practice basic math skills in addition, subtraction, multiplication, and division. You pick the number of and types of problems that you want to practice. You may also choose the largest number used in a problem as well as the number of terms (numbers) used
- Math Mayhem - a fast paced program where you can select addition problems. Most are two digit problems.(warning: turn sound to mute; this activity gets very loud!)
- Mental Math - select Addition to practice your skills
- Mixed Review - addition and subtraction of three numbers, find answer to reveal mystery picture. (warning: very difficult, student will need pencil and paper)
- Mystery Picture - subtract and find the mystery picture under the tiles (subtraction facts to 20)
- Mystery Picture - subtract 2 digit numerals, no borrowing.
- Number Families - fill in the missing numeral when given the family of addition and subtraction values

- More practice can be found here in the relationships between addition and subtraction
- Paint Brush Math - Paint by Numbers (but figure out the equations to figure out what the numbers actually are.)
- SpacyMath - One must sign in, but you can use the same log on for everyone in the class. Choose from addition or subtraction
- Speed Grid: Addition - (level 1) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
- Speed Grid: Subtraction - (level 1) Students answer the question set by clicking on two numbers that complete the sentence. You set the number of questions (2 to 99) and the time limit (1 to 10)
Subtraction- 1-3, 2-5, 3-8, 5-10, 5-20, 10-99, customize for any number range - from FreeMathTest

- Worksheets to print are also available supporting instruction of this topic
- Sum Fun - practice addition facts to 18
- Sum Sense (Addition) - Students practice single digit addition by dragging numbers to complete the sentence.
- Sum Sense (Subtraction) - Students practice single digit subtraction by dragging numbers to complete the sentence.
- Test the Toad - Add or subtract numbers from 1 to 15 by clicking on the numbered person.
- Tic-Tac-Toe Squares - (Fun Brain) Addition - Numbers less than
50- Tic-Tac-Toe Squares - (Fun Brain) Subtraction - Numbers less than
10- Timed Addition Facts - At end of 60 seconds this page shows the score and answers to problems.
- The Timernator - race against the clock -
addas fast as you can in 60 seconds [subtraction, multiplication, and division also available]- The Art of Math - Create your own math tests. Learn math through repetition. Each math test is randomly generated based on the values you provide (you set grade level and difficulty). This allows each math test to be unique, providing students with an endless number of challenges. (help with
adding,subtracting, ormultiplying)K - 3- What number would complete this sentence? - find the missing number

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