
Tesselation Interactivity
Have fun making creations with shapes, fitting them together with no gaps in between.
Seeing Squares
Play against the computer or another player.
Take turns choosing a dot on the gird. Your goal is to join 4 dots to form a square.
World of Tan
Create different pictures using 7 tangrams.
HINT: Click on the 2 squares connected with the blue arrow.
This will allow you to place the tangram pieces over the picture.
Fractions
Satisfraction
Practice the following skills:
Identifying
Simplifying
Comparing
Calculating
http://www.gregtangmath.com/satisfraction
Fractions and Decimals
This site provides games, word problems, videos and computation practice.
http://www.mathplayground.com/index_fractions.html
Computation skill building
AdditionFlip Flop
Find the matching sums.
How Much? How Many?
Level 1 Compare to 5
Level 2 Count to 10
Level 3 Make 10 and 20
Level 4 Group to 10
Level 5 Nested Arrays
Level 6 Series and Tricks
https://www.gregtangmath.com/howmany
Math Limbo
Find the sum using 1 or 2 numbers.
https://www.gregtangmath.com/mathlimbo
Standard Algorithms
Algorithms
Base 10 +
2 digit by 2 digit addition with carrying.
Base 10 
2 digit by 2 digit subtraction with borrowing.
http://www.gregtangmath.com/stdalgorithms
Kakooma
Addition or Multiplication
Select addition or multiplication.
Select size of puzzle.
https://www.gregtangmath.com/kakooma
Addition, Subtraction, Multiplication and Division
Missing Number
choose strategy and level
Addition
sum addend combo
Subtraction
difference subtrahend minuend combo
Multiplication
product factor combo
Division
quotient divisor dividend combo
http://www.gregtangmath.com/missing
Addition, Subtraction, Multiplication and Division
Breakapart
choose strategy and level
Addition
doubles make 10 make 100 partial sums
Subtraction
make 10 make 100 partial differences
Multiplication
facts 010
Division
partitive quotative partials
http://www.gregtangmath.com/breakapart
Addition, Subtraction, Multiplication and Division
You set the level (ex. 3 digit by 2 digit multiplication)
(Ex. If you want to add 2 digit by 2 digitclick 12, 12 3 digit by 3 digitclick 123, 123)
Addition, Subtraction, Multiplication and Division
https://www.mrnussbaum.com/draganddropmath/
Addition, Subtraction, Multiplication and Division
Mathdoku (another version of KenKe
The object of the game is to fill in all the blank grid with digits.
However, each row and each column can only have one of each digit AND the numbers must match with the total and the equation for its block.
https://www.ducksters.com/games/mathdoku_math_puzzle_game.php
Addition, Subtraction, Multiplication and Division
KenKen (another version of Mathdoku)
The object of the game is to fill in all the blank grid with digits.
However, each row and each column can only have one of each digit AND the numbers must match with the total and the equation for its block.
Choose a puzzle size, operation and level of difficulty.
http://www.kenkenpuzzle.com/game
Multiplication Tables
Find the matching pairs.
Money Games
Coin Bubble
https://www.gregtangmath.com/coinbubble
Dolphin Dash
Count the coins and race your dolphin around the water track
http://www.mathplayground.com/ASB_Dolphin_Dash.html
Dolphin Feed
Choose the correct coins before the other dolphins
http://www.mathplayground.com/ASB_Dolphin_Feed.html
Zog and Monsters
The target amount of money is shown at the bottom of the game. You must collect the coins that add up to the target amount.
http://www.mathplayground.com/zogs_and_monsters_money.html
Puzzle Pic Money
Match the coins to their value. Place the puzzle piece on the money amount in the grid
http://www.mathplayground.com/puzzle_pics_money.html
Place Value
Place Value
Practice place value with 2 digit and 3 digit whole numbers and decimals.