Page 38 - Math 4
P. 38

Fundamental Operations                                                                                                                                                  Fundamental Operations





            0  1   2   3   4   5   6  7   8   9   10  11 12 13 14 15 16 17 18 19 20 21
                                               +        =



            0  1   2   3   4   5   6  7   8   9   10  11 12 13 14 15 16 17 18 19 20 21
                                             9 + 5 =




            0  1   2   3   4   5   6  7   8   9   10  11 12 13 14 15 16 17 18 19 20 21

                                               –        =



            0  1   2   3   4   5   6   7  8   9   10  11 12 13 14 15 16 17 18 19 20 21

                                             16 – 7 =

           Section B
           8.  Let's rewrite these problems and solve them in your exercise book.


           a)   Rs 480  b)   645 kg            c)   586 boys           d)   2350 women
              + Rs 360         + 575 kg          + 465 girls             + 1995 men

              Rs                          kg                students                people


           e)   Rs 920  f)   1032 l                 g)   1780 students        h)   5143 people

             –  Rs 455       –   656 l          –  794 boys                  –  2855 women
             Rs                        l                   girls                       men


           i)  selling price  =    Rs 1350             j)  buying price =    Rs 2410

               buying price = – Rs 1065                    selling price  = – Rs 1875
                           profit  = Rs                                    loss  = Rs

           9.  Let's subtract and check your answer by addition in your exercise
                book.

           a)                                b)                           c)
               320                          407                          712
             –  145         + 145         –  178         + 178         –  325         + 325


                                                    36
          v edanta  Ex c e l in Mathematics - Book 4  36  Approved by Curriculum Development Centre, Sanothimi, Bhaktapur
          vedanta Excel in Mathematics - Book 4
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