These NCERT Solutions for Class 6 Maths Chapter 1 Knowing Our Numbers Ex 1.1 Questions and Answers are prepared by our highly skilled subject experts.

## NCERT Solutions for Class 6 Maths Chapter 1 Knowing Our Numbers Exercise 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) 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:

(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 suitably 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.

Question 4.

Insert commas suitably 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) 7,452,283: 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.