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    E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_01\Chap_01
                 \ 10-Nov-2025  Bharat Arora   Proof-8                                     Reader’s Sign _______________________ Date __________

                example 6. Round 550 to the nearest 100.

                Solution.
                                 500     510    520    530    540   550    560    570    580    590    600

                550 is exactly between 500 and 600.
                So, 550 rounds to 600.

                If a number is exactly between the two hundreds, it is always rounded to the higher
                hundreds.

                            Exercise 1E

                    1.  round the following numbers to the nearest 10.

                        a.  48                   b.  209                  c.  742                  d.  559
                        e.  1,075                f.  2,365                g.  5,745                h.  9,049

                        i.  10,204               j.  14,563

                    2.  round the following numbers to the nearest 100.

                        a.  345                  b.  597                  c.  2,830                d.  4,576

                        e.  5,007                f.  2,463                g.  9,398                h.  7,518

                        i.  14,657               j.  43,629
                    3.  round the following numbers to the nearest 10 and 100.

                                      Numbers                       Nearest 10                    Nearest 100

                        a.    346

                        b.    567

                        c.    238

                        d.    1,356

                        e.    2,406

                    4.  read the following facts and round off the numbers to the nearest 10 and 100.

                        a.  The height of Mount Everest is 8,848 m.                                  _______________

                        b.  The length of the river Ganges is 2,525 km.                              _______________
                        c.  The diameter of the Earth is 12,742 km.                                  _______________

                        d.  The International Space Station is at an altitude of 425 km.             _______________

                       20        Mathematics 4

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