Page 193 - New Medley 5 Semester 1
P. 193

2     2           2          2       1
                                     +     = 2 ×       =  2 −     =  1
                                  3     3           3          3       3

                            3     3     3           3          3       1
                               +     +     =  3 ×      =  3 −     =  2
                            4     4     4           4          4       4

                      4     4     4     4           4          4       1
                         +     +     +     =  4 ×      =  4 −     =  3
                      5     5     5     5           5          5       5

        Now, write the facts that will appear in 6th, 7th and 10th rows.




                                                     PUZZLE                                        • Critical Thinking




        Can  you  show  the  multiplication  of  two  proper  fractions  through  a  diagram?
        Given below is an example for your help.

                     2       3
        Multiply        by     .                                    6
                     5       4                                          (Double shade)
                                                                    20
          Z Z A rectangle is divided into 5 equal parts
            vertically and shaded 2 parts.
                                                                                          3
          Z Z Again,  it  is  divided  into  4  equal  parts                                 (Horizontal shade)
                                                                                          4
            horizontally and shaded 3 out of 4.

                                                 6
          Z Z The double shaded part is             .
                                                 20                 2
                                                                       (Vertical shade)
                                  2     3      6                    5
            Thus,                    ×     =
                                  5     4     20


        Represent the following:

              2     1                            3    2                            5    4
          1.     ×                          2.      ×                         3.      ×
              3     4                            8    5                            6    7















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