SOL 7.1 abcde Vocabulary

radical sign

The symbol used to indicate a positive square root

exponent

A mathematical notation indicating the number of times a quantity is multiplied by itself.

scientific notation

A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.

rational number

A number that can be written as a fraction

decimal

A number with one or more digits to the right of the decimal point

percent

A ratio comparing a number to 100

perfect square

A rational number whose square root is a whole number

irrational numbers

Numbers that cannot be expressed as a ratio of two integers. Their decimal expansions are nonending and nonrepeating.

absolute value

The distance a number is from zero on a number line. ALWAYS POSITIVE

Powers of 10

The number of times 10 is multiplied by itself.

improper fraction

a fraction whose numerator is larger than the denominator

proper fraction

a fraction with a numerator smaller than the denominator

mixed number

a number made up of a whole number and a fraction

square root

a number that when multiplied by itself equals a given number

negative exponent

an exponent less than zero which causes the base and its exponent to move positions in a fraction

positive exponent

move decimal to the right

exponential form

numbers written with exponents

fraction

part of a whole

Base

the number in a power that is multiplied over and over

Integers

whole numbers, their opposites, and zero