Page 200 - New Medley 5 Semester 1
P. 200

C.  Convert the following decimals into fractions.
                     1.  1.4                   2.  0.7                 3.  0.24                4.  1.46

                     5.  0.727                 6.  1.03                7.  0.002               8.  25.621


                D.  Convert the following fractions into decimals.
                           3                        263                     15624                   31623
                     1.                        2.                      3.                      4.
                          10                        100                      1000                    1000

                           17                         7                      2                      17
                     5.                        6.                      7.                      8.
                          100                       1000                    100                     10

                 E.  Express the following in decimal form.

                     1.  20 + 5 + 0.1 + 0.08 + 0.003                     2.  500 + 0.2 + 0.004

                                 3       6         2
                     3.  8 +         +        +                          4.  700 + 60 + 2 + 0.09
                                10     100      1000


                                      Equivalent, Like and Unlike Decimals


               In Class IV, we have learnt that the decimals representing the same value

               are called equivalent decimals.

                                        5       1               50       1                       500       1
               Example: 0.5 =               =  , 0.50 =               =      and 0.500 =                =    .
                                       10       2              100       2                      1000       2

               So, 0.5, 0.50 and 0.500 are equivalent decimals.

               The  decimals  having  an  equal  number  of  decimal  places  are  called  like

               decimals.

               Examples: 62.3, 539.2, 0.8                   (All have 1 decimal place)


                            8.53, 0.01, 225.18                (All have 2 decimal places)

                            123.231, 8.359, 0.009            (All have 3 decimal places)


               The  decimals  with  different  numbers  of  decimal  places  are  called  unlike
               decimals.


               Examples:           2.3,            6.258,             19.02                 Only decimal part
                                      ↓                ↓                  ↓           determines the group of like

                                 1 place          3 places          2 places               and unlike decimals.


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