The first to use the decimal point was a German Jesuit, Christopher Clavius. However, it was popularized by the Scottish mathematician, John Napier. More »

Although it is not known exactly who invented the multiplication table, scientists do know that ancient Babylonians used multiplication tables as early as around 1800 B.C. The oldest multiplication table using base 10 wa... More »

The decimal system was invented by Hindu mathematicians in India between the first and sixth centuries A.D. This system is sometimes also called the Hindu-Arabic numeral system because it was first introduced to European... More »

A mixed decimal is a number that has a whole number as well as a decimal point included in it. An example of a mixed decimal would be the number 3.1008. More »

Rounding to two decimal places means leaving only two numbers to the right of the decimal point. When the number in the third decimal place is any number between zero and four, round to two decimal places by deleting eve... More »

The use of the pasta strainer, also known as a sieve or colander, is so widespread throughout history that it is impossible to pinpoint any one inventor or point in time when it was invented. References to the sieve can ... More »

According to Wichita State University, Rene Descartes invented the Cartesian Plane, which is a theory of using ordered pairs to determine a specific point. This theory, explained in "La Geometrie," led to the invention o... More »