Math Mark Concentration Game

Help

Tap two cards. Each card flips over, revealing a picture underneath. Remember the location of each picture. Find and select two cards at a time, with matching pictures. Your score increases for each matching set. Your score decreases when you select two cards that don't match.

Scoring

Each level increases scoring by ten more points. The free Math Mark games include twelve levels. Each level's more difficult. The higher the level, the higher the score.

Scores accumulate from one level to the next. For example level one's score adds to level two's score. Level two's score adds to level three's score. Scores sum all the way through level twelve. Post your score, after completing a level, and it saves with the online scoreboard.

1. Earn ten points for each match on the first level.
   Lose five points for each mismatch on the first level.
2. Earn twenty points for each match on the second level.
   Lose ten points for each mismatch on the second level.
3. Earn one hundred twenty points for each match on the twelfth level!
   Lose sixty points for each mismatch on the twelfth level.

Post Your Score

After completing a level, enter a user name and password, in the form above. Select the Post Score button above to place your score in the online scoreboard. Select the Next Level button above, to play the next level!

Reset

At any time select the Reset button, to start at level one again.

Learn

Play the free Math Mark Games of concentration. Learn about mathematical symbols. Find and tap on matching cards to make your score increase. Select any card to learn math symbols.

See Mathematical Definitions While Playing

Approximately Equal: X is approximately equal to Y, when the value of X and Y are not exactly equal, but may be near as necessary to fulfill a specific use.

Factorial: The factorial of 'n' represents the product of every integer from 1 to n. For example, if n = 4, then 4 factorial = 1 x 2 x 3 x 4 = 24.

Infinity: Infinity represents a number on the real number line, which has no limit. Infinity is not a real number, but may be treated with the properties of a real number.

Parallel: Parallel lines X and Y extend infinitely, lie on the same plane, and never intersect.

Perpendicular: X is perpendicular to Y, means the angle where the line X and the line Y meet, is a right angle. A right angle is a 90 degree angle.

Pi: The constant Pi is the circumference of a circle 'C', divided by the circle's diameter 'd'. Pi = C/d.

Right Angle: A right angle is a 90 degree angle. A 90 degree angle represents 1/4 of a full circle

Theta: Represents the angle between two rays.