1. Indian Number System

2. Indian Large Numbers In this chapter you will learn: ●Large numbers upto 10 crores ●Place value chart ●Indian Number System ●Expressing the numbers ●Writing expanded and compact form of the numbers. ●Comparing and ordering large numbers ●Forming numbers

3. LARGE NUMBERS “The population of Mumbai in 2014 has reached 1,26,55,250,” Meera’s mother said shockingly. “How can i read this number? Asks Meera.” “You can read this number using Indian Number System”, answers mother. “Meera is puzzled” Indian Number System, what’s that? So, guys let’s help Meera to learn about “Indian Number System”

4. Let us learn how to read 8 and 9 digit numbers. We know that the greatest 7 digit number is 99,99,999. We get 1 crore by adding 1 to 99,99,999. 99,99,999 + 1 1,00,00,000 1,00,00,000 (1 crore) Is the smallest 8 digit number. We read, 8,35,43,987 as eight crore thirty five lakh forty three thousand nine hundred eightyseven.

5. Now, what is 10 crore equal to? 10 crores = 1 ten crore = 10,00,00,000 By adding 1 to the greatest 8 digit number i.e. 9,99,99,999 we get 10 crore. 9,99,99,999 + 1 10 crores = 1 ten crore = 10,00,00,000 By adding 1 to the greatest 8 digit number i.e. 9,99,99,999 we get 10 crore. 9,99,99,999 + 1 10,00,00,0000 is smallest 9 digit number. 10,00,00,000 We read 25, 52, 23,145 as twenty five crore fifty two lakh twenty three thousand one hundred forty five.

6. Indian Number System

7. Expressing The Numbers Express 3,76,48,715 in words:Write numeral for six crore fifteen lakh thirty seven thousand nine hundred eight: Three crore seventy six lakh forty eight thousand seven hundred fifteen 6,15,37,908 Do not use the words indicating the periods in plural form. We use comma to separate the different periods.

8. EXPANDED AND COMPACT FORM COMPACT FORMEXPANDED FORM 3,72,86,124 3 crore + 7 ten lakh + 2 lakh + 8 ten thousand + 6 thousand + 1 hundred + 2 ten + 4 ones 3 x 1,00,00,000 + 7 x 10,00,000 + 2 x 1,00,000 + 8 x 10,000 + 6 x 1000 + 1 x 100 + 2 x 10 + 4 3,00,00,000 + 70,00,000 + 2,00,000 + 80,000 + 6000 + 100 + 20 + 4