Write the following numbers in generalized form.
(i) 25Â (ii) 73Â (iii) 129Â (iv) 302
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Write the following in the usual form.
(i) 10 x 5 + 6Â Â Â Â Â Â Â Â Â Â Â Â (ii)Â 100 x 7 + 10 x 1 + 8Â Â Â Â Â Â Â (iii) 100 x a + 10 x c + b
Check what the result would have been if sundaram had chosen the numbers shown below. 1. 27Â 2. 39Â 3. 64Â 4. 17
Check what result would have been if Sundaram had chosen the numbers shown. 1.17Â 2.21Â 3.96Â 4.37.
1.                          Chosen number = 17
            Number with reversed digits = 71
                                   Difference = 71 - 17 = 54
                                                  = 9 x [6]
       Â
2.                               Chosen number = 21
                      Number with reversed digits = 12
                                            Difference = 21 - 12 = 9
                                                           = 9 x [1]
          = 9 x [Difference between the digits of the chosen number (2 - 1 = 1)]
3.                     Chosen number = 96
        Number with reversed digits = 69
                              Difference = 96 - 69 = 27
                                             = 9 x [3]
= 9 x [Difference between the digits of the chosen number (9 - 6)]
4.                                 Chosen number = 37
                   Number with reversed digits = 73
                                           Difference = 73 - 37 = 36
                                                         = 9 x [4]
     = 9 x [Difference between the digits of the chosen number (7 - 3 = 4)]
Check what the result would have been if Minakshi had chosen the numbers shown below. In each case keep a record of the quotient obtained at the end.
Check what the result would have been if Sudaram had chosen the numbers shown below. 1. 417Â 2. 632Â 3. 117Â 4. 937
Find the values of the letters in each of the following and give reasons for the steps involved.
   3 A
 + 2 5
 _____
   B 2
  ____