Exercise 6.1.1

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.

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 : .

3. Insert commas suitably and write the names according to Indian System of Numeration ?

(a) 87595762 : 87595762.

(b) 8546283 : 8546283.

(c) 99900046 : 9990046.

4. Insert commas suitably and write the names according to International System of Numeration ?

(a) 78921092 : , International system: 7892192.

(b) 7452283 : , International system: 7452283.

(c) 99985102 : , International system : 9998512.