Algebra Glossary: N

natural numbers; counting numbers: Values starting with one and increasing by one.

negative number: Any quantity that is less than zero; it is usually preceded by a minus sign.

negative reciprocals: Two numbers, one positive and one negative, whose product is –1.

nested: A condition where two or more grouping symbols are inside one another.

number system: A set of numbers.

numerator: The top number in a fraction.

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