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### 6 Cards in this Set

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 What are the numbersknown as integers? . . . -4, -3, -2, -1, 0, 1, 2, 3, 4, . . . How will I recognize an irrational number when I see one? An irrational number will include the symbol for pi or will contain the square root of a number that is not a perfect square. What are rational numbers? Rational numbers include all integers and also include fractions and decimals (even repeating decimals). What is a real number? Any number that is a counting number, a whole number, an integer, a rational number, or an irrational number is also a real number. What numbers are known as the whole numbers? 0, 1, 2, 3, 4, . . . What numbers are known as the counting numbers or natural numbers? 1, 2, 3, 4, . . .