Factors
Factor tree
Prime factor and applications quiz
Prime number checker
Prime number calculator
Modeling factors and primes
Factor Bingo

Exponents
Exponents (About)
Powers and exponents (information/Fact Monster)
View the Universe by Powers of 10
Keeping up with exponential growth (About)
Chain letter
Exponent quiz

Basic operations (+, - , *, / )
     Tutorials
Number line arithmetic (demo, all ops)
Rectangle multiplication
Show multiples (click on a number)
Multiplication is repeated addition
Meaning of division - show me
Inverse relationship between multiplication and division
Inverse relationship between division and multiplication

     Basic fact practice practice with visuals
Line Jumper (+ - , can include negative)
Times table grid game
Scribble Scrabble times table
Math flash (with or without visuals)

     Basic facts and multi-level
Addition machine
Callum's addition pyramid
Draggable Addition

Subtraction machine
Draggable Subtraction

Multiplication (KIdsNumbers)
Multiplication hidden picture
Multiplication machine
Multiplication mystery
Multiplication flashcard game
Multiplication fact match (Math Playground)
Multiplication matho
Fridge magnet and conveyor belt multiplication
Math magician (single digit)
The table trees (multiplication- select digit)
Draggable Multiplication

Division Top It
Division (KidsNumbers)
Division machine
Division bingo
Division mystery picture
Fridge magnet and conveyor belt division
Draggable Division

Division with remainders match

Basic facts on Harcourt Brace site
Math Dojo (variety of activities, including division with remainders, multi-digit)
Arithmetic Quiz (Various levels & operations)
Arithmetic Four (various levels & operations, two player)
Practice your math (all operations, select range)
Math flash (with or without visuals)
Two Minute Warning (+ - x)
Mathcar Racing
Soccer shootout
Tic Tac Toe
Speed Math
Nussbaum basic operations (various)
Defeat the Math Monster (multiple levels)
Space Shuttle Launch (multi-level, multi op)

     Multi-digit tutorials and practice
Addition demo
Addition of multi-digit numbers
Adding three, two-digit numbers mystery game
Addition of multi-digit numbers
Addition test

Subtracting with three (1 or 2 digit) #s mystery game
Subtraction demo
Subtraction of multi-digit numbers
Subtraction of multi-digit numbers
Subtraction of multi-digit numbers, e-lab
Subtraction test
Draggable Subtraction

Amoeba game (multiplying by splitting)
Multiplication demo (multii-digit, shows algorithm steps)
Multiplication of 2- and 3-digit numbers
Captain Knick Knack (1 digit by 2, arrays picture)
Amoeba game (multiplying by splitting)
Multiplication with regrouping
Multiplication of 2- and 3-digit numbers    HELP
Multiplication test
Draggable Multiplication

e-lab modeling division (including remainders)
Division demo (multi-digit/ array)
How to do long division
Division by 1 digit demo
Dividing multi-digit numbers by 1 digit   HELP
Draggable Division
Division test
Dividing multi-digit numbers by 1 digit
Dividing a 4-digit number by a 2-digit number
Divide by two-digit numbers - show me

Defeat the Math Monster (multiple levels)
Nussbaum basic operations (various)

Word problems/problem solving
BBC Multiplication (multi-level, includes word problems)
Multiplication problem solving
Word problems x/ one digit
Division problem solving
Money and more

Negative numbers
About positive and negative numbers
Negative number review
Negative number ordering
Line Jumper (number line)
Integer Tilt
Integer Tilt 2
CyberChase
Reading a thermometer
Color chip addition of negative and positive numbers
Operations with negative numbers
Adding and subtracting with negative numbers
Comparing negative numbers
Practice your math (NEED TO choose negative numbers for "What is the smallest..." slots.)
Mystery picture
Arithmetic Four (select "integers," various levels & ops, two player)
Arithmetic Quiz (select "integers," various levels & ops)

Place value
Identifying thousandths
Place value (4 digits on either side of decimal)
Model decimals - show me

Rounding and estimating
Rounding Off
Numbernut (see rounding & estimating section)
Rounding to whole numbers
Place Value Puzzler
Rounding demo
Rounding flashcards
Glowla's Estimation Contraption
Decimal and whole number jeopardy

Ordering and comparing
Decimal Switch
Comparing numbers - show me
Comparing numbers using a number line
The Number Line
Number lines
One False Move (order numbers)
Skillswise Greater than, Less than or Equal
Skillswise Order Numbers
Ordering 7-digit numbers
Comparing numbers (various levels)
Comparing Like Fractions
Comparing Unlike Fractions I
Comparing Unlike Fractions II
Comparing Fractions and Decimals
Comparing Integers and Fractions
Decimal and whole number jeopardy