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              example 3: Write the numeral and the number name for the numbers shown on the
              abacus.

                    (a)                           (b)                               (c)






                          tth  th  H  T   O               tth  th  H  T   O                 tth  th  H  T   O

              Solution:                                                                           Be Aware
                                                                                              In (b) there is no bead
                    (a)  14,273 – Fourteen thousand two hundred seventy-three.                in the hundreds place.

                    (b)  63,054 – Sixty-three thousand fifty-four.                            It represents zero
                                                                                              hundreds. Similarly,
                    (c)  50,901 – Fifty thousand nine hundred one.                            there are zero
                                                                                              thousands and zero
              6-digit numbers                                                                 tens in (c).


              Now, we know that 99999 is the greatest 5-digit number. Let us add 1 to it.

              Greatest 5-digit number + 1 = Smallest 6-digit number

              That is             99999             + 1 =           100000
                         (Greatest 5-digit number)          (Smallest 6-digit number)

              Thus, on adding 1 to the greatest 5-digit number, we get the smallest 6-digit number.

              It is read as one lakh.

              Hence, 100000 is the smallest 6-digit number.

              To represent 100000 (one lakh) in the place value chart, we need to add one more
              place, i.e., the sixth place from the right which represents the ‘lakhs place’ and for

              this, we have to introduce a new period called ‘Lakhs’.

              Thus,  the  place  value  chart  for 6-digit  numbers has                      Math Insight
              3 periods: Ones, thousands and Lakhs.                                    The lakhs period also has
                                                                                       two places: Lakhs (L) and
              Hence, 100000  (one lakh)  is  represented on the  place                 Ten Lakhs (TL).
              value chart as follows:

               Periods  →       Lakhs               thousands                                  Ones
               Places     →     Lakhs     ten thousands  thousands              Hundreds           tens       Ones

                                 (L)           (tth)              (th)              (H)             (t)        (O)
               Values of
               Places     → 100000             10000              1000              100             10          1

                                  1               0                 0                0              0           0


              Mathematics-4                                                                                          11
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