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Published byHarvey Moody Modified over 8 years ago

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REAL NUMBERS (as opposed to fake numbers?)

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Two Kinds of Real Numbers Rational Numbers Irrational Numbers

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Two Kinds of Real Numbers Rational Numbers Irrational Numbers

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Rational Numbers A rational number is a real number that can be written as a ratio of two integers. A rational number written in decimal form is terminating or repeating.

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Examples of Rational Numbers 16 1/2 3.56 -8 1.3333… - 3/4

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Irrational Numbers An irrational number is a number that cannot be written as a ratio of two integers. Irrational numbers written as decimals are non-terminating and non-repeating.

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Examples of Irrational Numbers Square roots of non-perfect “squares” Pi 17

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Integers One of the subsets of rational numbers

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What are integers? Integers are the whole numbers and their opposites. Examples of integers are 6 -12 0 186 -934

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Identify which of the following are rational numbers 16 1/2 3.56 -28 0.2546…..25 74 3/5 250 0.252525…… 0.2456852….. -8 1.3333… - ¾ -2.232323….. 210 -5/6.000456 2.012546…. 15 0.25648….. 0.10101010….

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