Indian Numbering System

In the Indian numbering system, we use different periods like ones, thousands, lakhs, crores, etc. Suppose, let us understand the Indian system by using number 1: ones (1), tens (10), hundreds (100), thousands (1000), ten thousands (10000), lakhs (1,00,000), ten lakhs (10,00,000), crores (1,00,00,000), ten crores (10,00,00,000) etc.

We form different periods like ones, thousands, lakhs and crores to read the large numbers easily. A comma (,) is used to differentiate the periods.

We know, in the Indian system, we have periods of crores, lakhs, thousands and ones.

Let us understand the system more clearly. Observe the table shown below.

We can express the following numbers in figures easily.

(i) Eighty-nine crore, twelve lakh, fifteen thousand, five hundred and sixty-two.

   — 89,12,15,562

(ii) Ninety-eight crore, fifteen lakh, seventeen thousand, two hundred and thirty-nine.

   — 98,15,17,239

Dictation of Indian Number System Video

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Some more examples will help us to write the Indian numbering system in figures and in words.

1. Write the following in figures in the Indian system:

(i) Five thousand 

(ii) Fifty thousand

(iii) Five lakh  

(iv) Fifty lakh

(v) Five crore  

(vi) Fifty crore

Solution:

(i) 5,000  

(ii) 50,000

(iii) 5,00,000  

(iv) 50,00,000

(v) 5,00,00,000   

(vi) 50,00,00,000

Note:

• The first period, called ones period, is formed with the first three digits of the number.

• The second period, called thousands period, is formed with the next two digits of the number.

• The third period, called lakhs period, is formed with the next two digits of the number.

• The fourth period, called crores period, is formed with the digits that come after lakhs.

2. Write the following in figures in the Indian system:

(i) One thousand, three hundred and twenty-four

(ii) Fifty thousand, four hundred and eleven

(iii) Two lakh, twelve thousand, six hundred and thirty-one

(iv) Sixty-two lakh, five thousand, eight hundred and three

(v) Eight crore, fifteen lakh, seventeen thousand, eight hundred and fifteen

Solution:

(i) 1324 

(ii) 50,411

(iii) 2,12,631

(iv) 62,05,803

(v) 8,15,17,815

Note:

We have to put a comma (,) properly after each period to differentiate the periods.

Worksheet on Indian Numbering System:

1. Express these numbers in figures.

(i) forty-two crore, ninety lakh, fifty-seven thousand, three hundred and seventy-two.

(ii) Seventy-one crore, thirteen lakh, forty-nine thousand, four hundred and four.

(iii) Ninety-two crore, five lakh, thirty-five thousand, six hundred and nine.

Answer:

1. (i) 42,90,57,372

(ii) 71,13,49,404

(iii) 92,05,35,609

2. Insert comma (,) to express the following numbers in the Indian system.

(i) 368432521

(ii) 167432674

(iii) 220980368

(iv) 983064212

(v) 200903840

(vi) 863546929

(vii) 569038209

(viii) 893459781

Answer:

2. (i) 36,84,32,521

(ii) 16,74,32,674

(iii) 22,09,80,368

(iv) 98,30,64,212

(v) 20,09,03,840

(vi) 86,35,46,929

(vii) 56,90,38,209

(viii) 89,34,59781

3. Write the number names of the following in the Indian system.

(i) 13,72,64,065

(ii) 19,43,82,650

(iii) 24,00,54,031

(iv) 21,03,84,659

(v) 20,50,04,008

(vi) 94,90,00,300

(vii) 54,38,32,103

(viii) 76,03,49,596

Answer:

3. (i) Thirteen crore, seventy-two lakh, sixty-four thousand and sixty-five

(ii) Nineteen crore, forty-three lakhs, eighty-two thousand, six hundred and fifty

(iii) Twenty-four crore, fifty-four thousand and thirty-one

(iv) Twenty-one crore, three lakh, eighty-four thousand, six hundred and fifty-nine

(v) Twenty crore, fifty lakh, four thousand and eight

(vi) Ninety-four crore, ninety lakh and three hundred

(vii) Fifty-four crore, thirty-eight lakh, thirty-two thousand, one hundred and three

(viii) Seventy-six crore, three lakh, forty-nine thousand, five hundred and ninety-six

4th Grade Math Activities

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