NCERT Solutions Std 6 Maths Chapter 1 Knowing Our Numbers
Exercise 1.1
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.
Answers:
1 lakh = 100000
Ten thousand = 10000
1 lakh = 10 ten thousand.
b). 1 million = 1000000
1 hundred thousand = 100000.
1 million = 10 hundred thousand.
c). 1 crore = 10000000
ten lakh = 1000000
1 crore = 10 ten lakh.
d). 1 crore = 10000000
1 million = 1000000
1 crore = 10 million.
e). 1 million = 1000000
1 lakh = 100000
1 million = 10 lakh.
2). Place commas correctly and write the numerals.
a). Seventy three lakh seventy five thousand three hundred seven.
b). Nine crore five lakhs forty one.
c). Seven crore fifty two lakh twenty three thousand two hundred two.
d). Fifty eight million four hundred twenty three thousand two hundred two.
e). twenty three lakh thirty thousand ten.
Answers:
a). Seventy three lakh seventy five thousand three hundred seven.
73, 75, 307
b). Nine crore five lakhs forty one.
9,05,00,041
c). Seven crore fifty two lakh twenty three thousand two hundred two.
7,52,23,202
d). Fifty eight million four hundred twenty three thousand two hundred two.
58,423,202
e). twenty three lakh thirty thousand ten.
23, 30, 010
3). Insert commas suitably and write the names according to the Indian System of Numeration.
a). 87595762 b). 8546283
c). 99900046 d). 98432701
Answers:
a). 87595762 – 8,75,95,762
Eight crore seventy five lakh ninety five thousand seven hundred sixty two
b). 8546283 – 85,46,283
Eighty five lakh forty six thousand two hundred eighty three
c). 99900046 – 9,99,00,046
Nine crores ninety lakh forty six.
d). 98432701 – 9,84,32,701
Nine crore eighty four lakh thirty two thousands seven hundred one.
4). Insert commas suitably and write the names according to the International System of Numeration.
a). 78921092 b). 7452283
c). 99985102 d). 48049831
Answers:
a). 78921092 – 78,921,092
Seventy eight million nine hundred twenty one thousand ninety two
b). 7452283 – 7,452,283
seven million four hundred fifty two thousand two hundred eighty three
c). 99985102 – 99,985,102
ninety nine million nine hundred eighty five thousand one hundred two
d). 48049831 – 48,049,831
forty eight million forty nine thousand eight hundred thirty one
Knowing Our Numbers
