Page 51 - Maths Class 05
P. 51

Practice - 3.1
                    Practice - 3.1
                    Practice - 3.1
                    Practice - 3.1
            1.  Write the first five multiples of the following numbers.

                 a.  4
                 b.  3

                 c.  7

                 d.  9

                 e.  8

                 f.   12
                 g.  15


            2.  Write the multiples of 6 which are greater than 20 and less than 50.
            Common Multiples

            A common multiple is a number that is a multiple of two or more numbers.

            For example : The common multiples of 3 and 4 are 0, 12, 24, etc.
            Example  :  Find common multiples of 4 and 6.

            Solution  :  Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, ......
                          Multiples of 6 are 6, 12, 18, 24, 30, 36, ......

                          So, the common multiples of 4 and 6 are 12, 24, 36, ......

                                                         Multiples of 4




                        0  1   2  3   4  5  6   7  8   9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24



                                                         Multiples of 6

                           Look at the multiples of 4 and 6 on the number line.

                    Practice - 3.2
                    Practice - 3.2
                    Practice - 3.2
                    Practice - 3.2
            1.  Find the common multiples of 2, 5 and 10.
            2.  Find the common multiples of 5, 6 and 15.

            3.  Find the common multiples of 4, 6 and 8.

            4.  Find the common multiples of 40 and 20.

            Factors


            Numbers can be multiplied to get a product. These numbers are called factors                        of the
            product.



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