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E:\Working\Focus_Learning\Math_Genius_5_(05-10-2023)\Open_Files\CHAP_01
              \\February 16, 2024 1:27 PM   Surender Prajapati   Proof 5   Reader _________________________   Date: ___________________74





              comParing anD orDering numbers

              In order to compare two numbers, we follow the following rules:

              rule 1: If two numbers have different number of digits,  the  number  with  less  digits  is
                       smaller than the number with more digits.
              example 1:  Compare 46436680 and 8656484.

              Solution:     Place both the numbers in place value chart.
                            Clearly,  the given  numbers  are of 8- and         C tL L tth th H t O
                            7-digit numbers, respectively.                      4 6 4       3   6 6 8 0          8 digits

                            Thus, 46436680 > 8656484                               8 6      5   6 4 8 4          7 digits
              rule 2:  If two  numbers have  the same number  of  digits.  Then, we  follow the following
                       steps to compare the numbers.

                       Step 1: First compare the digits at the left-most place in both the numbers.
                       Step 2: If they are same, then compare the second digits from the left.

                       Step 3:  If the second digits  from  the left are also same, compare the third digits
                                 from the left.
                       Step 4:  Continue until you come across different digits at the corresponding places.
                                 Now, the number with greater digit at such place will be the greater.

              example 2:  Which is greater: 5527692 or 3954635?
              Solution:     Here, both numbers have 7 digits.                        tL   L   tth th     H    t    O

                            So,  we compare the  left-most  digits  of both          5    5     2    7    6   9    2
                            numbers. Since, 5 > 3                                    3    9     5    4    6   3    5
                            Hence, 5527692 > 3954635.

              example 3:  Compare 9794362 and 9789974.                              Different
              Solution:     Both numbers are of 7 digits.                            tL    L  tth th      H    t   O
                            So, first, we compare  the left-most digits  of
                            the two given numbers.                                    9   7     9    4    3    6   2

                            First  left-most  digits  are same,  i.e.,  9.  Now,      9   7     8    9    9    7   4
                            compare second left-most digits.
                            Second left-most digits are also same, i.e., 7.           Same    Different (9 > 8)

                            Now, comparing third left-most digits, here 9 > 8.
                            So, 9794362 > 9789974.

              example 4: Arrange the following numbers in ascending order:
                            53072249, 51889620, 86121450, 27504545, 983250

              Solution:     Let us arrange the given numbers in the place value chart.
                            Here, we can see that there are four 8-digit numbers and one 6-digit number.

                            Clearly, the 6-digit number is the smallest.


              Mathematics-5                                                                                          15
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