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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-01
\\December 6, 2023 1:30 PM Bharat Arora P-6 Reader _________________________ Date: ___________________74
example 3: Write the number and the number name for the number shown on the
abacus.
(a) (b) (c)
tth th H t O tth th H t O tth th H t O
Solution: Remember
(a) 14,273 – Fourteen thousand two hundred seventy-three. In (b) there is no beads
in 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
tens in (c).
6-digit numbers
Now, we know that 99999 is the greatest 5-digit number. Let us add 1 to it.
Greatest 5-digit number → 99999 + 1 = 100000 ← Smallest 6-digit number
On adding 1 to the greatest 5-digit number, we get Lakhs thousands Ones
the smallest 6-digit number. L tth th H t O
100000 is read as one lakh. It is the smallest 6-digit 9 9 9 9 9
number. + 1
1 0 0 0 0 0
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 ‘lakhs place’ and for this, we have to introduce a new period called ‘Lakhs’.
Thus, the place value chart for 6-digit numbers has 3 periods: Remember
Ones, thousands and Lakhs. Lakhs period also has
two places: Lakhs (L)
Hence, 100000 (One lakh) is represented on the place value and Ten Lakhs (TL).
chart as follows:
Periods → Lakhs thousands Ones
Places → Lakhs ten thousands thousands Hundreds (H) tens Ones
(L) (tth) (th) (t) (O)
Values of
Places → 100000 10000 1000 100 10 1
1 0 0 0 0 0
Mathematics-4 11

