Module 2 Terminology: Multi-Digit Whole Number and Decimal Operations

Vocabulary terms and definitions from Grade 5 Module 2 on multi-digit whole number and decimal operations.

Composite number

A positive integer having three or more whole number factors.

Conversion factor

The factor in a multiplication sentence that renames one measurement unit as another equivalent unit.

Multiplier

A quantity by which a given number, a multiplicand, is to be multiplied.

Parentheses

The symbols used to relate order of operations.

Prime number

A positive integer greater than $1$ having whole number factors of only $1$ and itself.

Associative property

The sum of an addition expression or the product of a multiplication expression does not change if three or more numbers are grouped differently.

Decimal

A number written in decimal form.

Digit

Any numeral, $0$–$9$, used to write numbers.

Dividend

The number that is divided by another number.

Divisor

The number by which another number is divided.

Equation

A statement that the values of two mathematical expressions are equal.

Equivalence

A state of being equal or equivalent.

Equivalent measures

Measures that are equal.

Estimate

An approximation of the value of a quantity or a number.

Multiple

The product of a given number and any other whole number.

Pattern

A systematically consistent and recurring trait within a sequence.

Product

The result of multiplying numbers together.

Quotient

The answer of dividing one quantity by another.

Remainder

The number left over when one integer is divided by another.

Renaming

Decomposing or composing a number or units within a number.

Rounding

Approximating the value of a given number.

Unit form

A form of writing numbers when the digit represents how many of each place value units are in the number.