What Is the Importance of Abacus Method?
Abacus is a calculating device, which takes the form of rows of beads strung on wires and set in a frame. When counting in decimals, the top row stands for units, the...
Read More
Where Were Numbers First Used?
Where Were Numbers First Used? The earliest written numbers we know of were used in Egypt and Mesopotamia about 5,000 years ago. At first men reckoned by chipping...
Read More