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    E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_04
                 \ 12-Sep-2024               Surender Prajapati   Proof-5                     Reader’s Sign _______________________ Date __________

                  2.  Find the product of given pair of numbers in each case. Observe that the change
                       in the order of numbers does not affect the product.

                       (a)  14 × 8              (b)  53 × 7              (c)  42 × 16            (d)  14 × 20

                            8 × 14                   7 × 53                   16 × 42                  20 × 14

                  3.  Find the estimated product as well as the actual product of the following.
                       (a)  55 × 24             (b)  28 × 13             (c)  63 × 34            (d)  44 × 33

                       (e)  58 × 22             (f)  42 × 24             (g)  73 × 19            (h)  45 × 19

                  WorD probleMs

                  Example 1:  A bus can carry 52 passengers. How many passengers can be carried by 36
                  buses?                                                                        th H t O

                  Solution:  Number of passengers a bus can carry                  = 52                  5 2
                                 Number of buses = 36                                         ×          3 6

                                   So, number of passengers that 36 buses can carry                  3 1 2
                                 = 52 × 36 = 1872                                             + 1 5 6 0
                                                                                                 1 8 7 2
                                     Therefore, 36 buses can carry 1872 passengers.
                  Example 2: A packet contains 144 balloons. Find the number of balloons in 24 such packets.
                  Solution:  Number of balloons in one packet = 144                        th H t O

                                 Number of packets = 24                                         1 4 4
                                 So, the number of balloons in 24 such packets           ×          2 4
                                                                                                5 7 6
                                                                                                              1st product
                                 = 144 × 24 = 3456 balloons                              + 2 8 8 0            2nd product
                                 Therefore, 24 packets contain 3456 balloons.               3 4 5 6           Sum

                           practice time 4g

                  Solve the following word problems.
                  1.  A class has 46 students. Each student contributes `25 for the identity card. How much

                       money is collected in the class?
                  2.  A matchbox contains 50 matchsticks. How many matchsticks will be there
                       in 73 matchboxes?

                  3.  A packet contains 184 paper clips. Find the number of paper clips in 24 packets.
                  4.  A garland contains 135 beads. How many beads will 36 garlands contain?
                  5.  A box of chocolates has 24 slabs in it. How many slabs will there be in 134 boxes?

                  6.  A wooden chair costs `175. Find the cost of such 34 chairs.

                  80                                                                                    Mathematics-3

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