3 Real Number: the set of all rational and irrational numbers. Ex: 1, , 5/6,Rational Numbers: numbers that can be written as a fraction a/b where be cannot be 0.Ex: 4, 12/6, 22/2....Irrational number: number that cannot be written as a fraction.Ex: , ,
4 Rational Numbers-can be written as terminating decimals. Ex: 0.25, 0.135, 6.86-can be written as repeating decimals. Ex: ,-can be written as a fraction.Ex: 10/11, 14/2, 1/3
5 Irrational Numbers-cannot be written as a repeating or terminating decimal.Ex:
11 Compare - 0.08 and - 0.1Use the symbols < and >
12 The OPPOSITE or ADDITIVE INVERSE of any number x is -x Ex: The additive inverse of 2 is -2.the additive inverse of -400 is 400.The RECIPROCAL of any nonzero number a is 1/a.Ex: The reciprocal of 2 is 1/2.The reciprocal of -4/9 is -9/4.