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# 1-3 notes - 1-3 Exploring Real Numbers(are there fake...

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1-3 Exploring Real Numbers (are there fake numbers?) Natural numbers – 1,2,3,……. Whole numbers – 0,1,2,3,….. Integers ……-2,-1,0,1,2,3,4,…….. Rational Numbers- any number that you can write in the form b a , where a and b are integers and 0 b - they can be written as decimals (6.27 or repeating 33 . 4 ) - All integers are rational numbers because you can write any integer as a fraction (4 can be written as 1 4 )

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Name the set(s) of numbers to which each given number belongs 1) -13 2) 3.28 3) 25 13 4) 42 Irrational Numbers- cannot be expressed in form b a , where a and b are integers - the numbers after the decimal go on forever without any repeating 5) True or False: All integers are rational numbers. How can we keep all these numbers straight??!
Name the set(s) of numbers to which each number belongs 1) -12 2) -4.67 4) 5 Which set of numbers is most reasonable for the cost of a

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1-3 notes - 1-3 Exploring Real Numbers(are there fake...

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