# Selina Solutions Concise Mathematics Class 6 Chapter 3 Numbers In Indian And International Systems

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This chapter is based on unit, number, numeral and numeration. A symbol representing a given number is known as numeral and representing that number in words is known as numeration. Practising Selina Solutions helps students to obtain the method of solving complex problems with ease. Download the PDF of Selina Solutions Concise Mathematics Class 6 from the links provided here.

## Selina Solutions Concise Mathematics Class 6 Chapter 3: Numbers In Indian And International System Download PDF

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Exercise 3 page no: 23

1. Write the following numerals using Indian System or International system (as required) in words:
(i) 4, 35, 342 = â€¦â€¦â€¦â€¦..
(ii) 36, 71, 430 = â€¦â€¦â€¦â€¦..
(iii) 4, 28, 30, 004 = â€¦â€¦â€¦â€¦..
(iv) 75, 132, 684 = â€¦â€¦â€¦â€¦â€¦
(v) 815, 906 = â€¦â€¦â€¦â€¦â€¦.

Solution:

The given numbers in Indian System words can be written as follows:

(i) 4, 35, 342 = Four lakh, thirty five thousand, three hundred forty two

(ii) 36, 71, 430 = Thirty six lakh, seventy one thousand four hundred thirty

(iii) 4, 28, 30, 004 = Four crore, twenty eighty lakh, thirty thousand four

(iv) 75, 132, 684 = Seventy five million, one hundred thirty two thousand, six hundred eighty four

(v) 815, 906 = Eight hundred fifteen thousand, nine hundred six

2. Write the following numbers, placing the commas, according to Indian system :
(i) 835629 = â€¦â€¦â€¦â€¦
(ii) 35640254 = â€¦â€¦â€¦â€¦
(iii) 2826040 = â€¦â€¦â€¦

Solution:

Numbers placing the commas, according to Indian system can be written as follows:

(i) 835629 = 8, 35, 629

(ii) 35640254 = 3, 56, 40, 254

(iii) 2826040 = 28, 26, 040

3.Write the following numbers, by placing the commas, according to International system :
(i) 6509820 = â€¦â€¦â€¦..
(ii) 428140584 = â€¦â€¦â€¦â€¦
(iii) 63560981 = â€¦â€¦â€¦.

Solution:

Numbers placing the commas, according to International system are

(i) 6509820 = 6, 509, 820

(ii) 428140584 = 428, 140, 584

(iii) 63560981 = 63, 560, 981

4.Fill in the blanks :
(i) Four lakh sixty seven thousand three hundred six.
= â€¦â€¦â€¦â€¦â€¦â€¦ (In numeral form)
= â€¦â€¦â€¦â€¦â€¦ (In International System)
= â€¦â€¦â€¦â€¦â€¦. (In International numeration)
(ii) Thirteen lakh forty five.
= â€¦â€¦â€¦â€¦â€¦. (In numeral form)
= â€¦â€¦â€¦â€¦â€¦. (In International System)
= â€¦â€¦â€¦â€¦â€¦. (In International numerals)
Solution:

(i) Four lakh sixty seven thousand three hundred six

= 4, 67, 306 (In numeral form)

= 467, 306 (In International System)

= Four hundred sixty seven thousand three hundred six (In International numeration)

(ii) Thirteen lakh forty five

= 13, 00,045 (In numeral form)

= 1, 300, 045 (In International System)

= One million three hundred thousand forty five (In International numeration)

5. Fill in the blanks :
(i) Six hundred four thousand eight hundred forty seven.
= â€¦â€¦â€¦â€¦â€¦. (In numeral form)
= â€¦â€¦â€¦â€¦â€¦. (In Indian System)
= â€¦â€¦â€¦â€¦â€¦â€¦ (Number name in Indian System)
(ii) Two million three hundred ten thousand one hundred four
= â€¦â€¦â€¦â€¦â€¦.. (In numeral form)
= â€¦â€¦â€¦â€¦â€¦ (In Indian System)
= â€¦â€¦â€¦â€¦â€¦. (In Indian numeration)
= â€¦â€¦â€¦â€¦â€¦.. (In international numerals)

Solution:

(i) Six hundred four thousand eight hundred forty seven

= 604, 847 (In numeral form)

= 6, 04, 847 (In Indian System)

= Six lakh four thousand eight hundred forty seven (Number name in Indian System)

(ii) Two million three hundred ten thousand one hundred four

= 2, 310, 104 (In numeral form)

= 23, 10, 104 (In Indian System)

= Twenty three lakh ten thousand one hundred four (In Indian numeration)

= 2, 310, 104 (In International numerals)