Real numbers system These are the set of all counting numbers such as 1,2,3,4,5,6,7,8,9, ...... Real numbers are numbers that include both rational and irrational numbers. Rational numbers such as integers (-3, 0, 2), fractions (1/2, 3.5) and irrational such as √3 ,ฯ(22/7), are all real numbers NB: 1. Under Integers there's negative numbers (-1; -2...) and whole numbers (0;1;2;3....) 2. Under Whole numbers there's Natural numbers (1,2,3). Remember that 0 is not a natural number. 3. Under Natural numbers there's Prime numbers (2;3;5;7......) and Composite number (4;6;8;9....). May you please study this picture it...
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