Calculae is a card game involving basic arithmetic. Players compete to form math expressions in the fastest time. It is an educational and fun game especially for children to improve on their basic arithmetic.

Setup

Deal 7 Number cards to each player. Place the rest of the Number cards in a face down Number deck, the 8 Operator cards face up, and the 29 Result cards in a face down Result deck.

Game Play

During the start of each round, put the top card from the Result deck face up. Each player needs to form an math expression using the Number cards in his hand and the Operator cards such that the result equals to the number on the face-up Result card.

To form the math expression, the player must say "Calculae!". Then he has to put his selected Number cards face up and use the Operator cards to form the math expression. Once it has been verified by the rest of the players that the expression evaluates to the number on the Result card, the player keeps his selected Number cards face-down in front of him. He then draws cards from the Number deck to fill his hand to 7 Number cards. Then the next round starts.

The math expression should follow the order of precedence of math operators. If no players can form an expression, reveal the next top card from the Result cards deck. The game ends when the Number deck or the Result deck is depleted. The Number cards with a question mark are wild cards, they can represent any number.

The winner is the player with the most face-down Number cards.

The rules and graphics can be obtained here.

http://www.boardgamegeek.com/boardgame/55899

Hope to get any comments or suggestions here!

The operators are actually reusable. The player who shouted "Calculae" use them to form the expressions, then put them back. Thus for 1 Result card, only 1 player gets to form an expression for it. An expression can have a maximum of 2 plus, 2 minus, 2 multiply and 2 divide.