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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Diffy

Subtraction (Math 6) 
Java Applet 
Tool 

[1]

Solve an interesting puzzle involving the differences of given numbers.
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Everyday Mathematics® Subtract...

Subtraction (Math 6) 
iPad 
Tool 
$ 
[0]

The game offers a way to practice and reinforce 2digit subtraction computation and number comparisons. Players take turns dealing two 2digit number cards to each player, finding their differences, a...
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HandsOn Math: Bean Sticks

Subtraction (Math 6) 
iPad 
Tool 
$ 
[0]

HandsOn Math: Bean Sticks simulates the use of a popular math manipulative used to teach place value and addition and subtraction with regrouping.
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HandsOn Math: Graph Cubes

Subtraction (Math 6) 
iPad 
Tool 
$ 
[0]

Use simple gestures to drag and drop blocks, placing them in columns to build bar graphs. The author and designer coined the term "artificially intelligent math manipulative" to describe how using the...
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Make 24 If You Can

Subtraction (Math 6) 
Excel 
Tool 

[4]

This is an Excel spreadsheet that implements a game similar to the cardbased 24 Game by Suntex International Inc. The game presents four digits at random. The challenge is to devise a numerical exp...
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Math Doodles: Number Jump

Subtraction (Math 6) 
Flash 
Tool 

[4]

Smash the flies by maneuvering the ball along the number lines.
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MathTappers: Find Sums

Subtraction (Math 6) 
iPad 
Tool 

[0]

Find Sums is a simple game designed to help learners to make sense of addition (and subtraction as a related operation), and then to support them in developing accuracy and improving their speed. Comp...
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Mental Addition and Subtractio...

Subtraction (Math 6) 
Flash 
Tool 

[1]

The Mental Addition and Subtraction module can be used as a starting point for: learning different methods of mental addition and subtraction. Linked resources include factsheets, games, quizzes, and ...
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Number Line Arithmetic

Subtraction (Math 6) 
Java Applet 
Tool 

[1]

This virtual manipulative can be used to depict whole number addition, subtraction, multiplication and division operations carried out on a numberline.
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PrimaryPaths

Subtraction (Math 6) 
JavaScript 
Tool 

[3]

PrimaryPaths (which replaced the PrimaryMath.org site) provides interactive educational tools that teachers and parents can use to make learning easier. Our website provides interactive arithmetic pr...
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Rework Your Budget

Subtraction (Math 6) 
Calculator 
Tool 

[0]

Knowing where your money goes is an eyeopening experience and an education in itself. This calculator will help you by tracking your expenses. Keep a log and jot down whatever you spend. In this way,...
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The Abacus in Various Number S...

Subtraction (Math 6) 
Java Applet 
Tool 

[0]

An interactive Java applet showing one or two Russian abacuses with options to select the base of the number system and the number of wires. The applet displays the number matching the current config...
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Touch Natural Numbers

Subtraction (Math 6) 
Android 
Tool 

[0]

With this app you can:

XP Math: Solving Subtraction E...

Subtraction (Math 6) 
Flash 
Tool 

[0]

In this game, students race the clock to solve simple subtraction equations.
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Episode 8: Subtraction

Subtraction (PreKindergarten) 
Flash 
Lesson Plan 

[0]

Activities to introduce the concept of subtraction as the inverse of addition.
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Count Us In: Game 8

Subtraction (PreKindergarten) 
Flash 
Tool 

[0]

Count the number of pins that will still be standing. Type in that number. Click on the bowling ball or hit enter. If the number is correct the ball will bowl. Keep going until you have reached zero. ...
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HandsOn Math: Base Ten Blocks

Subtraction (PreKindergarten) 
iPad 
Tool 
$ 
[0]

HandsOn Math: Base Ten Blocks is a virtual math manipulative playground where students explore and discover place value concepts and also learn addition and subtraction with regrouping. Our Base T...
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Number Line Arithmetic

Subtraction (PreKindergarten) 
Java Applet 
Tool 

[1]

Illustrates arithmetic operations using a number line.
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Whole Calculator

Subtraction (PreKindergarten) 
Android 
Tool 

[0]

This app functions as a calculator for the set of the natural numbers (N). Type the numerical operations and view the both inputs and the result in words.
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Sum and Difference Formulas (T...

Sum and Difference (Trigonometry) 
Flash 
Support Material 

[1]

This minilesson explains sum and difference formulas for sine and cosine functions.
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Using Sum and Difference Formu...

Sum and Difference (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains more details of how to find the values of the sine and the cosine functions using the sum and difference formulas.
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Formula for sin(A+B)

Sum and Difference (Trigonometry) 
Java Applet 
Tool 

[0]

This applet teaches students geometrically that sin(A+B) = sin(A)cos(B) + cos(A)sin(B). Students can change the values of A and B.
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InteGreat!

Summation notation (Calculus) 
Java Applet 
Tool 

[0]

InteGreat! allows the user to visually explore the idea of integration through approximating the integral value with partitions. The activity integrates a function and displays the value of the defini...
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Cuadros en un Cuadro

Summation notation (Discrete Math) 
Java Applet 
Technology PoW 

[0]

Si tienes una tabla de damas que mide 50 x 50 con cuadros pequeños adentro, cuántos cuadros hay en total en toda la tabla?
versión en inglés
NOTE: A free login is require...
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Squares in a Square

Summation notation (Discrete Math) 
Java Applet 
Technology PoW 

[3]

If you have a checkerboard that is 50x50 with small squares inside it, how many squares will there be all together? Students use a Java applet from the Freudenthal Institute to think about the ques...
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