The term of tenths is a mathematical concept that refers to the fractional part of a number. It is also known as a DECIMAL, which is a seven-letter word. Decimals are used to express numbers that are not whole numbers, such as 0.5 or 0.75. They are written using a DECIMAL point and are composed of digits to the right of the DECIMAL point. Decimals are used in many different areas of mathematics, including fractions, percentages, and scientific notation.