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Sets of Numbers. Natural Numbers. The numbers with which you count. N = {1, 2, 3, 4, 5, ...}. Whole Numbers. The natural numbers and zero. {0, 1, 2, 3, 4, 5, ...}. Integers. Whole numbers and their opposites or negatives. Z = {..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...}.
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Natural Numbers • The numbers with which you count. • N = {1, 2, 3, 4, 5, ...}
Whole Numbers • The natural numbers and zero. • {0, 1, 2, 3, 4, 5, ...}
Integers • Whole numbers and their opposites or negatives. • Z = {..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...}
Rational Numbers • The quotient of any two integers with the exception that dividing by zero is not allowed. ½, .75, 35%, -¾ , -.96, -0.66… (-2/3)
Real Numbers • Any number that can be represented by a decimal or equivalently by a point on a number line . , √2, √11 _ __