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Online sum Games
Chess Solo Game

Plays: 2775
Category: BoardGame Games
Move all the chess pieces on the field with a value of 1 (or lower) to complete level of the game. After placing the figures on the field this value decreases by one. The sum of all fields is your score. Putting figures on the field with zero or negative is a waste of 10 points. During the game you can change the figure before the move, but changing the king will lose one point.
Space Sum Game

Plays: 2672
Category: Puzzles Games
Space Sum is a simple and fun flash game where you have to click numbered balls so that they add up to the sum needed.
Space Journey Solitaire Game

Plays: 2634
Category: BoardGame Games
New patience game with two types of gameplay and a lot of levels by Free-Skill-Games.com . You are space traveller knocking about the cosmic world. Move from one planet to another and return to the Earth. There are twenty planets with 5 levels in each, so 100 levels in sum for your continuous pleasure. The game combines two types of the popular solitaire.
Panda sum Game

Plays: 2584
Category: Education Games
A fun addition math game
Pyramid Solitaire Game

Plays: 2503
Category: BoardGame Games
Remove all the cards from the pyramid by pairing them with complementary cards to sum 13. Kings are removed without pairs. The game is complete if all the cards in the pyramid are removed.
numbers Game

Plays: 2342
Category: Puzzles Games
A group of numerals will appear on the right hand side of the screen. Choose some of the numerals in order to attain the sum which is equivalent to the number that appears in the TV
Numbers Invaders V2 Game

Plays: 2339
Category: Action Games
Numbers Invaders is a modified version of Space Invaders. Insteed of Aliens you have to shoot the right numbers to make the target sum... This game is for improving your adding abilities and having fun. 12 levels.
Draw Domino Solo Game

Plays: 2235
Category: BoardGame Games
Add a domino to an open end of the layout, if you can. If you can't to make a move (or if you need), you must (you can) draw dominoes from the boneyard. When your hand ends you get points: sum of dots from remaining dominoes.
Kakuro Game

Plays: 2064
Category: Education Games
This highly addictive numerical game of Kakuro is refined from the fine elements of Sudoku and crossword. Come and challenge the randomly generated puzzles now! Your goal in this game is to fill in all of the blanks with numbers 1 to 9, such that the numbers in each horizontally or vertically connected group are not the same, and the numbers in a group will give the sum of the clue in front of the group. When the game opens, you will be given numerous blanks which are randomly divided into different groups, running horizontally or vertically. In front of each group a number is presented as a clue, indicating the sum of all numbers within that group. When you hover your mouse over a clue, the possible equations will be displayed for your reference. To fill in a blank, click the number pad on the left of the screen, then click the corresponding square. If a number you put violates the rules mentioned above, the corresponding squares will be highlighted in red, and you can remove the incorrect numbers by clicking the cross button on the number pad and selecting the corresponding squares. If you cannot make any moves, you may click the Hint button at the bottom of the screen to receive an answer, but note that each time you do so 100 seconds will be added to the time you have spent, as indicated at the bottom left corner. Spice up the lengthy days, animate the longsome nights and activate your mind as you engage in the latest puzzle craze!
Killer Sudoku Game

Plays: 2061
Category: Education Games
Time to defeat the killer, sudoku geniuses! Same as the classic version of the number puzzle, you will be given a 9x9 grid, which is evenly divided into 9 squares. Your goal in the game is to put numbers 1 to 9 onto the blanks of the grid, such that the numbers will not be repeated in each row, each column, and each 3x3 square. In addition to that, the blanks will be separated into groups by red lines which are called cages. In each of the cages you will be given a number, and the sum of the numbers in the cage must be equal to that given number. When you hover your mouse over the given number, the possible sums will be shown for your reference. You can click a number on the number pad on the left of the grid to fill in a blank. If you would like to remove a number previously entered, you can click the cross button at the bottom of the number pad to erase it. If you are not able to put a number, you may click the Hint button under the grid to reveal one of the answers, but note that for each hint you receive 100 seconds will be added to the time you have spent, as indicated at the bottom left corner of the screen. Rise to the indulging arithmetic game now!
Numberz Game

Plays: 2056
Category: Education Games
Numberz! is a learning puzzle game. The aim of the game is to clear the playfield making a necessary sum of numbers on neighboring tiles. You cannot match the tiles diagonally. If the sum is correct, the color of tiles will change. Change all the colored tiles to white to pass the level. Compete in a multiplayer mode and have fun!
Simple Brain Game

Plays: 2032
Category: Education Games
Improve your maths and visual memory with two fun games for you and the family. Simple Brain is different from the rest because it makes leaning fun. Improve you visual memory with is a step by step rotational pattern game, and the goal is to remember the moves shown to you. The maths section isn’t as simple as is it might seem, the goal is to answer the question with a set number of moves.
Melius Math Game

Plays: 1950
Category: Action Games
Your main taks is to select squares that in sum will give you the target value. Click on square to select it. Drag the mouse to select several squares.
Kakuro - vol 1 Game

Plays: 1936
Category: BoardGame Games
Play the kakuro game. It is like a cross between a crossword and a Sudoku puzzle. Instead of letters, each block contains the digits 1 through 9. The same digit will never repeat within a word. If you add the digits in a word, the sum will be the number shown in the clue. Clues are shown on the left and right sides of “across” words, and on the top and bottom sides of “down” words. Click on the numbers in the top right part of the screen to select the number. Click on an empty box to write the number. Click on a previous written number to delete it. Game is completely controlled by mouse.
Number Decoder Game

Plays: 1915
Category: Education Games
Guess what the numbers were drawn. Click on the buttons and change the number and then click on the CHECK. When the sum of the differences is zero, the game goes to the next level.
Christmas Pyramid Solitaire Game

Plays: 1903
Category: BoardGame Games
Christmas is coming and now you can play the themed version of pyramid solitaire. Remove the pairs of cards for which the sum is 13 and get rid of the pyramid to win!
Kakuro - vol 2 Game

Plays: 1890
Category: BoardGame Games
Play the kakuro game. It is like a cross between a crossword and a Sudoku puzzle. Instead of letters, each block contains the digits 1 through 9. The same digit will never repeat within a word. If you add the digits in a word, the sum will be the number shown in the clue. Clues are shown on the left and right sides of “across” words, and on the top and bottom sides of “down” words. Click on the numbers in the top right part of the screen to select the number. Click on an empty box to write the number. Click on a previous written number to delete it. Game is completely controlled by mouse.
Rescue 3 Game

Plays: 1866
Category: Action Games
Some bandits have kidnapped his family and are asking for a large sum of money. Face the traps and rescue your family.
99 Seconds Game

Plays: 1697
Category: Education Games
The game is one of the best games for children to sharp their mathematical skills. A list of 5 numbers are given, where player is supposed to set their sign right to make the resultant sum. A 99 seconds are given for the player, with in which the player should answer maximum number of puzzles.
SavvyMath2 Game

Plays: 1628
Category: Education Games
Goal of game is really simple: over the time you need to choose numbers whose sum is equal to the number in the lower left corner (asterisk). With each new level the count of numbers increases, and the time is reduced. To complete level you need to clear all fields, so no numbers left at the end. Have Fun!

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Tips: Games that use a modified opponent graphic instead of an explosion graphic should disable Bosses in the Gameplay section.