Exercise 1.1 - Chapter 1 - Knowing Our Numbers - Ncert Solutions class 6 - Maths

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Question 1:
Fill in the blanks:
(a) 1 lakh =____ ten thousand
(b) 1 million = ____ hundred thousand
(c) 1 crore = ____ ten lakh
(d) 1 crore = ____ million
(e) 1 million =____ lakh
Answer 1:
(a) 10
(b) 10
(c) 10
(d) 10
(e) 10

Question 2:
Place commas correctly and write the numerals:
(a) Seventy-three lakh seventy-five thousand three hundred seven.
(b) Nine crore five lakh forty-one.
(c) Seven crore fifty-two lakh twenty-one thousand three hundred two.
(d) Fifty-eight million four hundred twenty-three thousand two hundred two.
(e) Twenty-three lakh thirty thousand ten.

Answer 2:
(a) $73,75,307$
(b) $9,05,00,041$
(c) $7,52,21,302$
(d) $58,423,202$
(e) $23,30,010$

Question 3:
Insert commas suitable and write the names according to Indian system of numeration:
(a) 87595762
(b) 8546283
(c) 99900046
(d) 98432701

Answer 3:
(a) $8,75,95,762$

Eight crore seventy-five lakh ninety-five thousand seven hundred sixty-two.
(b) $85,46,283$

Eight-five lakh forty-six thousand two hundred eighty-three.
(c) $9,99,00,046$

Nine crore ninety-nine lakh forty-six.
(d) $9,84,32,701$

Nine crore eighty-four lakh thirty-two thousand seven hundred one.

Question 4:
Insert commas suitable and write the names according to International system of numeration:
(a) 78921092
(b) 7452283
(c) 99985102
(d) 48049831

Answer 4:
(a) $78,921,092$

Seventy-eight million nine hundred twenty-one thousand ninety-two
(b) $7,452,483$

Seven million four hundred fifty-two thousand two hundred eighty-three
(c) $99,985,102$

Ninety-nine million nine hundred eighty-five thousand one hundred two
(d) $48,049,831$

Forty-eight million forty-nine thousand eight hundred thirty-one