Page 37 - Revised Maths Wisdom Class - 6
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The Other Side of Zero                                                                                    35








                                                    COGNITIVE

                                                          MAP







                                            The Other Side of Zero




                                                                                            Imaginary Number
                  Real Number                        Number System                                    or
                                                                                             Complex Number




           Rational Number                                           Irrational Number






                 Integer Number                                         Fractional Number

           I = {...., –3, –2, –1, 0, 1, 2, 3....}             These numbers come with the decimal






            POSITIVE INTEGER        ZERO NUMBER           NEGATIVE INTEGER
              1, 2, 3, 4 .........        {0}              –1, –2, –3, .........






           NATURAL NUMBER               WHOLE NUMBER
           N = {1, 2, 3, 4 ......}   W = {0, 1, 2, 3, 4 ......}


                                                                  PROPER FRACTION            IMPROPER FRACTION
          Rememberable Points                                      i.e.  ,  , .... etc.        i.e.  11 9
                                                                       4 3
                                                                                                     ,  , .... etc.
           ›   All natural numbers are positive integers.              7 9                         7 4
           ›   Smallest natural number is 1.
           ›   Smallest whole number is 0.
                + (+) = +, + (–) = –
           ›     – (+) = –, – (–) = +

           ›   Additive inverse of a is –a .
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