# CBSE Class 6 Mathematics/Knowing Our Numbers – Chapter 1/Extra Questions.

**CBSE Class 6 Mathematics/Knowing Our Numbers – Chapter 1 is about the important questions that you can expect for Yearly Examination. Here you can find out practice problems for Class 6 Maths.**

**CBSE Class 6 Mathematics/ Knowing Our Numbers – Chapter 1Extra Questions for Practice/Model Questions**

**Answer the following:**

**Write the number name and expanded form of 4098.**

Solution:

Number name: Four Thousand Ninety Eight.

Expanded form: 4 x 1000 + 9 x 10 + 8**Write the greatest and smallest five digit numbers using the digits 7, 5, 0 with repetition.**

Solution:

Greatest Number: 77750

Smallest Number: 50007**Write the place value and face value of 5 in 75689.**

Solution:

Place Value: 5000

Face Value: 5**Write the following numbers in ascending and descending order;**

34576, 34675, 34756, 36475, 35475

Solution:

Ascending Order: 34576, 34675, 34756, 35475, 36475

Descending Order: 36475, 35475, 34756, 34675, 34576**Round off to nearest tens, hundreds, thousands: 3578**

Solution:

Nearest tens: 3580

Nearest hundreds: 3600

Nearest thousands: 4000**Estimate the following products: 45 x 425**

Solution:

45 rounds off to 50

425 rounds off to 400

Estimated product = 50 x 400 = 20000**Write the numbers in Roman Numerals:**

i) 92

ii) 100

Solution:

92 = XCII

100 = C**Write Hindu-Arabic numeral for:**

i) LXXVI

ii) XCVII

Solution:

i) LXXVI = 76

ii) XCVII = 97**Write the numeral: Fifty million four hundred eight thousand three hundred four.**

Solution:

50,408,304.**Write the numeral: Three crore nine lakh forty five thousand twenty three.**

Solution:

3, 09,45,023.