# Knowing Our Numbers – Chapter 1/CBSE Class 6 MathematicsExtra Questions for Practice/Worksheet/Model Questions

1. Insert comma suitably and write the name in Indian System of numeration: 2048975
2. Insert comma suitably and write the name in International System of numeration: 4897432
3. Write the expanded form of: 304875
4. Write the numeral of 400000 + 2000 + 500 + 8
5. Write in ascending order: 38750, 30875, 37085 and 37805
6. Form the largest and the smallest 5 digit number using the digits 7, 0, 4, 1, 9
7. Write as Roman numerals:
a) 37
b) 93
8. Write as Hindu Arabic numerals:
a) XLVII
b) CDLV
9. Round off to tens:
a) 438
b) 575
10. Round off to hundreds:
a) 489
b) 2897

1. 20, 48,975: Twenty lakh forty eight thousand nine hundred seventy five.
2. 4, 897, 432: Four million eight hundred ninety seven thousand four hundred thirty two.
3. 300000 + 4000 + 800 + 70 + 5
4. 402508
5. 30875, 37085, 37805, 38750
6. Largest number: 97410
Smallest number: 10479
7. a) 37 = XXXVII
b) 93 = XCIII
8. a) XLVII = 47
b) CDLV = 455
9. a) 438 round off to 440
b) 575 round off to 580
10. a) 489 round off to 500
b) 2897 round off to 2900