Math Games

Archive for May, 2010

Question: Probability math problems.. Help!?

A game is played by rolling a die. The number rolled counts as a positive value if it is even, and a negative value if it is odd. For example, rolling a 4 would give you +4 points, whereas rolling a 3 would give you -3 points. What is the effective value for the game?

3

-2

0

1

Using only the spades from an ordinary deck of playing cards, points are awarded as follows: Drawing an ace gives you -3, drawing a face card gives you +4, and drawing a numbered card gives you a -1. What is the effective value and is the game fair?

+1, No

-1, Yes

0, Yes

0, No

Answer: Even and odd values have equal chances of being thrown. So the value of the game will be
+4 -3 = +1

There are 13 cards, one ace, 3 face cards and 9 others.

The effective value is
(-3*1/13 +4*3/13 -1*9/13*13 = 0.

The game is fair.

Basic Math, The Complete Course - Number Patterns

The Four Square Game has been a favorite game for children a long time ago. The Four Square Game is also called the Four Square Ball Game. Below are the Four Square Game rules.

Four Square Game rules

The Four Square Game can be played by 4 people or more. The Four Square Game is played on a flat surface indoor or outdoor. The method of Four Square Game is to slap the ball into another player's square in the way that he or she cannot slap it to the next player's square. To win the Four Square Game, you have to stay in Square 4 the longest. You need to concentrate and pay attention when playing the Four Square Game.

How to play the Four Square Game?

To play the game, follow the Four Square method and Four Square Rules below.

• draw a large square (about 8 feet wide and long). You can do this with a chalk.
• draw tow lines to divide the square into equal sections
• number the squares 1 to 4 (as shown in the Four Square game picture below)

The square labelled 4 in the Four Square Game is also known as the King because it carries the highest rank and score.

• Four Square Rules