Archive for: November 2007

Addition is the mathematical operation of combining or adding two numbers to obtain an equal simple amount or total. Addition also provides a model for related processes such as joining two collections …

Two or more numbers which are added. 

Example  

      4    +          …

Join two or more numbers, or quantities together 

3 + 5 = 8 

In geometry and trigonometry, an angle (in full, plane angle) is the figure formed by two rays sharing a common endpoint, called the vertex of the angle. The magnitude of the …

Exact, correct, right, careful, with no error.

State of being exact or accurate.

An abacus (plurals abacuses or abaci), also called a counting frame, is a calculating tool for performing arithmetical processes, often constructed as a wooden frame with beads sliding on wires. The user, called an abacist, …