Which term refers to the expression of parts of numbers or divided quantities in units of 10?

The term that refers to the expression of parts of numbers or divided quantities in units of 10 is decimals. Decimals are a way to represent fractions in a base 10 system, allowing for easy division and comparison of numbers that are not whole. For example, the number 0.5 is a decimal representation of the fraction 1/2, and it makes it clear that it is half of a whole.

When you express a number as a decimal, you are using a point to separate the whole number part from the fractional part, which allows for a straightforward understanding of values less than one. This is particularly useful in various applications, such as measurements, financial calculations, and scientific data, where precision is crucial.

Fractions represent parts of a whole but are not restricted to base 10 and can be expressed in various forms, like 1/2 or 3/4. Integers are whole numbers that can be positive, negative, or zero, but do not include fractions or decimals. Rational numbers encompass both fractions and decimals, as they can be expressed as the quotient of two integers, but the specific term for representing parts in base 10 is decimals.