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8th-2.1-2.3 Real No
Term | Definition |
---|---|
repeating decimal | decimal in which 1 or more digits repeat. |
terminating decimal | decimal that ends with repeating zeros. |
bar notation | used to indicate a digit or group of digits that repeat |
perfect square | a rational number whose square root is a whole number. |
principal square root | a positive square root |
radical sign | a symbol used to indicate the principal square root. |
inverse operation | operations that undo each other |
cube root | a number that multiplied by itself three times results in the original number |
irrational number | a number that cannot be expressed as a ratio; they are decimals that are non-terminating and non-repeating. |
rational number | a number that can be expressed as a ratio; will have a terminating or repeating decimal. |
integers | set of natural numbers, their opposites and zero |
whole numbers | set of natural numbers and zero |
natural numbers | are the set of counting numbers |