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E:\Working\Orange_Education\Math_Genius_5\Open_Files\CHAP_01
\ 08-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________
Some 7-digit numbers are given below. Let us see how these numbers are read.
Numbers How to read?
3265480 Thirty-two lakh sixty-five thousand four hundred eighty
4531008 Forty-five lakh thirty-one thousand eight
3918564 Thirty-nine lakh eighteen thousand five hundred sixty-four
8-Digit numbers
When we add 1 to the greatest 7-digit number, that is, 9999999, we get the smallest
8-digit number.
C tL L TTh Th H t O
Be Aware
9 9 9 9 9 9 9 Greatest 7-digit number For an 8-digit number,
+ 1 we need a new place
1 0 0 0 0 0 0 0 Smallest 8-digit number called crore.
10000000 is the smallest 8-digit number. It is read as one crore.
Similarly, 20000000 is read as two crore, 50000000 is read as five crore and 90000000 is
read as nine crore.
99999999 is the greatest 8-digit number and it is read as nine crore ninety-nine lakh
ninety-nine thousand nine hundred ninety-nine.
Here are some 8-digit numbers. Let us see how these numbers are read.
Numbers How to read?
43030493 Four crore thirty lakh thirty thousand four hundred ninety-three
60000579 Six crore five hundred seventy-nine
94326648 Nine crore forty-three lakh twenty-six thousand six hundred forty-eight
PLace VaLue system
To read and write large numbers, we generally use two place value systems.
( a) Indian place value system (b) International place value system
Each place value system has some groups, called periods, and each period contains places.
indian Place Value system
In the Indian place value system, numbers are arranged into periods of Ones, Thousands,
Lakhs, Crores, and so on.
Let us write the number 86382793 in the Indian place value chart.
Periods Crores Lakhs Thousands Ones
Places Ten Crores Crores Ten Lakhs Lakhs Ten Thousands Hundreds Tens Ones
(TC) (C) (TL) (L) Thousands (Th) (H) (T) (O)
(TTh)
100000000 10000000 1000000 100000 10000 1000 100 10 1
8 6 3 8 2 7 9 3
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