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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

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
9009683 Ninety lakh nine thousand six hundred eighty-three
8-Digit numbers

When we add 1 to the largest 7-digit number, that is, 9999999, we get the smallest 8-digit
number.

9 9 9 9 9 9 9 Largest 7-digit number Note
+ 1 For an 8-digit number,
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 largest 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
71134365 Seven crore eleven lakh thirty-four thousand three hundred sixty-five
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

Mathematics-5 9