Class 6 - Mathematics : Knowing our Numbers
Exercise : 1.1
Top Block 1
NCERT Solutions Class 6 Mathematics Knowing our Numbers Ex 1.1
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:
(a) 10
(b) 10
(c) 10
(d) 10
(e) 10
Question 2.Place commas correctly and write the numerals:
(a) Seventry-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:
(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:
(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
Mddle block 1
Question 4.Insert commas suitable and write the names according to International system of numeration:
(a) 78921092
(b) 7452283
(c) 99985102
(d) 48049831
Answer:
(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