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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-07
              \\December 6, 2023 10:54 AM   Bharat Arora   P-6          Reader _________________________   Date: ___________________74





              Understanding decimals

              Maya  has  a  chocolate.  She  wants  to share it  with  her  friends.  So,

              she  divides the chocolate into 10 equal pieces, and gives 5 pieces
              to Riya and 3 pieces to Siya.

                                                                                       3
                                                                   5
              Using fractions, we can say that Riya got           10  and Siya got     10  of the chocolate.
              We can represent the fractions as:                                            Remember

                   5          0.5 (read as zero point five)                        Decimal part of the number is
                  10                                                               always less than one whole. We


                   3          0.3 (read as zero point three)                       write the zero at the left of
                                                                                   decimal point which indicates there
                  10                                                               is no whole number in the left.
              These are called the decimal numbers or simply decimals.

              Here, we can  see that a  dot or  point is  used  in  the  decimal representation  of the

              above fraction. The point is called ‘decimal point’.
              Let us consider the number 3.5 as shown alongside.                                 3 . 5
                                                                                  Whole
              A  decimal  number  has three parts:  whole number                  number                      Decimal
                                                                                                              part
              part, decimal point and fractional or decimal part.                 part        Decimal point

              Number written before decimal point is called whole number part and the number
              after decimal point is called fractional part.


              tenths


              Take a paper  strip  and  divide  it  into  10 equal  parts.                1   or 0.1 (one-tenth)
                               1                                                          10
              Each part is        (one-tenth) of the strip. Shade its one
              part.           10                                                      1  1  1   1  1   1  1  1   1  1

                                                                                     10 10 10 10 10 10 10 10 10 10
              The fraction of shaded part =          1
                                                    10
              We can write it in decimal form as 0.1 and read a ‘zero point one’.

              Look at the shaded parts of these strips.



               1   1  1   1  1  1   1  1   1  1   1   1  1   1  1  1   1  1   1  1    1  1  1   1  1   1  1  1   1  1
               10 10 10 10 10 10 10 10 10 10      10 10 10 10 10 10 10 10 10 10      10 10 10 10 10 10 10 10 10 10




                 2   = 0.2 (two-tenths                     6   = 0.6 (six-tenths or              8   = 0.8 (eight-tenths or
                10                                        10                                     10
               or zero point two)                       zero point six)                       zero point eight)

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