Basic Math Vocabulary

Value

• The value a digit has in a number. Example: In 438, the value of the 3 is 30.

• The total amount represented by a number without considering the position of its digits.

• The numerical representation of a digit regardless of its position in a number.

• The sum of all digits in a number.

Regrouping

• Exchange of digits from different places.

• A method of simplifying fractions.

• A technique for solving linear equations.

• A strategy for memorizing multiplication tables.

Place Value

• The value of a digit based on its position in a number.

• The name of the location of a digit. Example: In 438, the place of the 3 is the tens place.

• The total value of all digits in a number.

• The difference between the highest and lowest digits in a number.

Sum

• The total obtained when numbers are multiplied together.

• The answer when numbers are added to each other.

• The difference between two numbers.

• The average of a set of numbers.

Inverse

• Opposite. Example: The inverse of addition is subtraction.

• A mathematical operation that combines two numbers.

• A term used to describe a function that is not defined.

• A type of geometric transformation.

Addend

• A number that is subtracted from another number.

• Another number that is added to another number.

• A number that is multiplied by another number.

• A number that is divided by another number.

Number Sentence

• A statement that describes a relationship between numbers and operations.

• An equation using numbers and operation symbols.

• A phrase that indicates a mathematical operation.

• A visual representation of a mathematical concept.

Even

• A number that can be divided evenly by 2.

• A number that is greater than 0.

• A number that is a multiple of 3.

• A number that is less than 10.

Estimate

• Find an answer by rounding to the nearest 10, 100, or 1000.

• Calculate the exact value without rounding.

• Use a calculator to find the answer.

• Guess the answer based on intuition.

Digit

• Any symbol used to write a whole number.

• A letter used in the alphabet.

• A mathematical operation.

• A type of punctuation mark.