Mrs. Dempsey
Vocabulary

Number Sense   Rational Numbers - Vocabulary
benchmark	A "nice" number that can be used to estimate the size of other numbers.           0, 1/4, 1/2, 3/4, 1     or      0.0, 0.25, 0.5, 0.75, 1.0
decimal	A special form of a fraction where the denominator is 10, 100, 1000 and so on.
denominator	The number below the bar in a fraction which tells how many equal parts are in the whole.
equivalent fractions	Fractions that are equal in value but have different numerators and denominators.
fraction	A number which indicates a part of a whole written in the form of a/b.
improper fraction	A fraction in which the numerator is larger than or equal to the denominator.
lowest terms or reduced	A fraction in which the numerator and the denominator have no common factors.
mixed numbers	A number that has a whole number part and a fraction.
numerator	The number above the bar in a fraction which represents how many parts of the whole you are using.
percent	A special fraction/decimal which represents how many out of 100.
ratio	The comparison of two quantities written in the form of a/b, a:b, or a to b.

Whole Numbers - Vocabulary

Composite Number	A whole number that has more than two factors.
Divisible	A whole number is divisible by another whole number if the remainder is zero when you divide.
Even Number	A whole number that is not divisible by two.
Exponent	A numeral written above and to the right of another numeral to indicate how many times the original number is multiplied.
Factor	One of two or more whole numbers that are multiplied to obtain a product.
GCF greatest common factor	The largest factor that two or more numbers have in common.
LCM least common multiple	The smallest number that is a multiiple of two or more numbers.
Multiple	The product of a given whole number and another whole number.
Odd Number	A whole number that is divisible by two.
Prime Factorization	The expression of a number as a product of prime factors.
Prime Number	A whole number greater than one whose only factors are one and itself.
Square Number	The product of a whole number multiplied by itself.

Operations/Commands - Vocabulary
¡Ù , =	Not equal, Equal
< , >	Less than, Greater than
¡Ü ¡Ý	Less than or equal to, Greater than or equal to
Approximate	To obtain a number close to an exact amount.
Compare	To look for similarities or differences.
Difference	The answer in a subtraction problem.
Estimate	To find an approximate value or measurement of something without exact calculation.
Evaluate	To examine and judge carefully.
Place Value	The value of a digit as determined by its place in a number.
Product	The answer in a multiplication problem.
Quotient	The answer in a division problem.
Round	To replace a number with a near number that is easier to work with.
Simplify	To rewrite a number or expression in its simplest form.
Sum	The answer in an addition problem.