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International and Indian number system Class 5 Maths

Indian Numeral System / Indian system of numeration

International and Indian number system Class 5 Maths

     

Indian Numeral System in detail. Ones, Tens, Hundreds, Thousands, Ten Thousand, Lakhs, Ten Lakhs, Crores, and so on are the place values of digits.

 

In the number 20,63,15,768:

The place value of each digit will be

  • 8: Ones
  • 6: Tens
  • 7: Hundreds
  • 5: Thousands
  • 1: Ten Thousand
  • 3: Lakhs
  • 6: Ten Lakhs
  • 0: Crores
  • 2: Ten Crores

 

Following is the relationship between them:

  • 10 Tens = 1 Hundred
  • 100 Tens = 10 Hundreds = 1 Thousand
  • 1000 Hundreds = 100 Thousands = 1 Lakh
  • 10,000 Thousands = 100 Lakhs = 1 Crore


Zeros in 1 Crore

We know that 1 Crore = 100 Lakhs

And  1 Lakh = 1,00,000

Since there are five zeros in lakhs, we can write 1 Crore as:

1 Crore = 100 x 1,00,000

1 Crore = 1,00,00,000

Therefore, the number of zeros in 1 Crore is seven.

 

International Numeral System / International system of numeration

In the international numeral system, digit place values get assigned to Ones, Tens, Hundreds, Thousands, Ten Thousand, Hundred Thousands, Millions, Ten Million, and so on.

In the number 85,346,297, the place values of each digit are:

  • 7: Ones
  • 9: Tens
  • 2: Hundreds
  • 5: Thousands
  • 4: Ten Thousand
  • 3: Hundred Thousand
  • 5: Millions
  • 8: Ten Million

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