http://www.math-games.biz/ - en-us http://www.math-games.biz/game/21/Tower-Defense-4.html Some values of the towers: Basic towers have arrow, cannon and air. Elemental towers have water, earth and fire. Combo tower has rocket. You have to research to build elemental towers and combo towers. http://www.math-games.biz/game/20/Tower-Defense-3.html Choose your class: Mage, Warrior, Assassin, Druid. Then, choose the map: Pillbox, Trenches, Cloveer, Skirmish, Lost, Rundown, Salute. http://www.math-games.biz/game/19/Tower-Defense-2.html Use 'A' to hold to airlift selected unit, release to drop, 'S' to sell selected unit. Earn money and purchase units, if a subject escapes, you lose security, when it reaches 0, you are defeated. http://www.math-games.biz/game/18/Tower-Defense.html Buy items and place them on the road lead to the tower. http://www.math-games.biz/game/17/Attack-the-tower.html Try to control the bugs, build and release units while the player builds towers. There are 10 levels to play. http://www.math-games.biz/game/16/City-Defense.html The Red Army will send in wave after wave of forces to take over the Revolutionary HQ, 30 waves in total. If you can plan correctly, choose and place your units wisely and mange your resources, you can hold them off and win the game http://www.math-games.biz/game/15/Island-Defense.html Defense your island by don't let the enemies touch the flag or don't let your cannon destroyed. There are many objects to buy, there are new enemy at every round. Use 'E' and 'R' to keys to rotate the items. You can also sell the items... http://www.math-games.biz/game/14/Castle-Defense.html Defense the castle by buying cannons and shoot to the enemies. You have to place cannons at the right place so that they can work together... http://www.math-games.biz/game/13/The-Blood-Road.html The monsters are coming to the village, your objective is to defend your village by place traps, armed citizens at the only road lead to the village. This is a very interesting game, you have to select the right traps or citizens for each monster. http://www.math-games.biz/game/12/Defense-the-Castle.html The enemies are attacking the castle, your mission is to defend it. You will have to do it your best by pick the enemies and throw them to the air. At the end of each stage, you can buy some additional useful objects with your point. http://www.math-games.biz/game/11/Subtraction-Game.html Subtraction game is a math game, the goal is to subtract by select the boxes until it equal to the result. Be careful, you will easily get out of the needed numbers. http://www.math-games.biz/game/10/Multiplication-Game.html Click the boxes to multiply until the result is equal to the number below the game. http://www.math-games.biz/game/9/Climb-the-mountain.html Climb to the top of the mountain by answering some simple math questions. You have an opponent (computer for one player, and human for two players). Each time you answer correct a question, you will get an IQ point. More instruction, please refer to the g http://www.math-games.biz/game/8/Math-addition-game.html Click on the boxex to add the numbers equal to the value at the bottom of the screen. Calculate as fast as possible, but be careful, if you use all the needed number you will get stuck! http://www.math-games.biz/game/7/Kakuro.html Kakuro is a great puzzle game, unlike Sudoku, Kakuro has rows, columns and dark cells. This is a simple flash version of. Some hard games have a complex puzzle and cost week to solve.