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    E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_05\Chap_05
                 \ 09-Nov-2025  Bharat Arora   Proof-8                                     Reader’s Sign _______________________ Date __________

                                                                                              Mental Maths

                                                                                                      21 st
                Choose the correct option.                                                           Century   #Critical Thinking
                                                                                                     Skills
                    1.  The smallest multiple of 15 is ____________.
                        a.  1                    b.  30                   c.  15                   d.  5

                    2.  30 is a ____________ of 120.
                        a.  factor                                        b.  multiple

                        c.  common multiple                               d.  common factor

                    3.  An odd multiple of 7 between 35 and 56 is ____________.
                        a.  57                   b.  49                   c.  51                   d.  53

                    4.  Which is not a factor of 36?
                        a.  6                    b.  1                    c.  8                    d.  9

                  5.  Every number is a multiple of ____________.
                        a.  1                    b.  10                   c.  2                    d.  3

                  6.  Every number other than 1 has at least ____________ factors.
                        a.  1                    b.  3                    c.  2                    d.  4

                                                                                                       HOTS

                                                                                               21 st
                  Kavita  and Hema  have  joined  swimming  classes.                         Century   #Computational Thinking
                                                                                              Skills
                Kavita goes on every 4th day, whereas Hema goes on

                every 3rd day. Kavita and Hema joined the classes                                             20XX
                on 12th May. Looking at the calendar, answer the
                following questions:

                    1.  On which dates has Kavita gone swimming?

                    2.  On which dates will both the friends meet?

                    3.  Starting from 12th May, after how many
                        days will both meet?

                       90        Mathematics 4

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