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Technology 
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Mental Arithmetic Drills

Mental math (Math 3) 
Java Applet 
Tool 

[2]

Mental arithmetic drills in the four operations. Various difficulty levels are available.
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More or Less Estimator

Estimation (Math 3) 
Java Applet 
Tool 

[1]

States a quantity and asks the user to estimate whether the set of objects is more or less than the number given.
Spanish version also available.
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Number Line Arithmetic

Addition (Math 3)+ 
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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Number Line Bounce

Addition (Math 3)+ 
Java Applet 
Tool 

[5]

This virtual manipulative can be used to visualize a sequence of operations on a number line and to create number sentences representing the operations.
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Number Puzzles

Operations with numbers (Math 3) 
Java Applet 
Tool 

[1]

Solve puzzles involving arranging numbers on a diagram so that they add up to a given value.
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Rectangle Multiplication

Multiplication (Math 3) 
Java Applet 
Tool 

[2]

Visualize the multiplication of two numbers as an area. Choose the latticeoption to draw a correspondence between the lattice method for multiplying numbers and an area representation. Choose t...
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Soroban in Various Number Syst...

Addition (Math 3)+ 
Java Applet 
Tool 

[0]

An interactive Java gadget simulating sorobanthe Japanese abacus. Options inlude selecting the number system base and the number of wires. The applet displays the number matching the configur...
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Space Math

Addition (Math 3) 
Java Applet 
Tool 

[1]

Space Math is a project designed to assist students to learn about place value and carrying.
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Suan Pan in Various Number Sys...

Addition (Math 3)+ 
Java Applet 
Tool 

[0]

An interactive Java gadget simulating suan panthe Chinese abacus. Options include selecting the number system base and the number of wires. The applet displays the number matching the configu...
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Ten Frame

Addition (Math 3) 
Java Applet 
Tool 

[0]

In this interactive tenframes tool, users practice counting and adding to twenty. The frames help users think of numbers in relation to 10.
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The Abacus in Various Number S...

Addition (Math 3)+ 
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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Addition Worksheets

Addition (Math 3) 
JavaScript 
Tool 

[0]

A script which allows control over generating positive whole number addition problems of various selectable lengths.
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Base 10 Addition Mathlets

Operations with numbers (Math 3)+ 
JavaScript 
Tool 

[0]

The idea for the one, two, and three place addition mathlets is to show the steps in the base ten addition procedure in conjunction with a model. Each time the mathlet is run (by clicking the "New" b...
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Cryptarithms

Operations with numbers (Math 3) 
JavaScript 
Tool 

[1]

Cryptarithms are brain teasers obtained when digits in numerical calculations have been replaced by letters. Customarily, distinct letters stand for different digits. Another term, Alphametics, denote...
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Estimating and Rounding Decima...

Rounding (Math 3)+ 
JavaScript 
Tool 

[1]

The user reviews how to estimate and round off whole and decimal numbers. After viewing examples, users can interactively practice rounding the given numbers to specific place values.
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Multiplication Facts

Multiplication (Math 3)+ 
JavaScript 
Tool 

[0]

There are three different modes linked to help all students learn their times tables.

Multiplication Worksheets

Operations with numbers (Math 3) 
JavaScript 
Tool 

[0]

A script which allows control over generating positive whole number multiplication problems of various lengths.
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Multiply and Divide by 10, 100...

Multiplication (Math 3)+ 
JavaScript 
Tool 

[0]

This module can be used as a starting point for learning multiplication and division by 10, 100 and 1000 using place value of digits and also by moving the decimal point. It includes converting betwee...
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Online Interactive Multiplicat...

Multiplication (Math 3) 
JavaScript 
Tool 

[0]

An online interactive multiplication grid designed for students who are having difficulty learning their times tables. Access this tool from the Internet or save the page and open the file from your b...
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OpenArithmetic

Operations with numbers (Math 3) 
JavaScript 
Tool 

[0]

OpenArithmetic.org, built by a group of people at the Chair of Internet Technology, Brandenburg University of Technology, Germany, is dedicated to the idea of providing open educational resources for ...
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PrimaryPaths

Operations with numbers (Math 3) 
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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Subtraction Worksheets

Subtraction (Math 3) 
JavaScript 
Tool 

[0]

A script which allows control over generating positive whole number subtraction problems of various lengths.
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The Doctor X Amazing Griddable...

Operations with numbers (Math 3) 
JavaScript 
Tool 

[1]

A 10 x 10 interactive grid with 10 possible colors to use. Start by drawing rectangles to count. Use the quick tour to consider multiplication, the distributive property, prime vs composite, square nu...
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Times Tables

Multiplication (Math 3)+ 
JavaScript 
Tool 

[2]

The Times Table module can be used as a starting point for learning a particular table; a reinforcement of number patterns and tables already covered; and practicing knowledge of tables. Linked resour...
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Addition Surprise

Addition (Math 3) 
Shockwave 
Tool 

[2]

Students practice addition facts by dragging the given numbers onto the Fact Table to a box where the row and column add up to the given number. A free preview activity from Harcourt School Publisher...
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