# CBSE Class 6 Mathematics/ Knowing Our Numbers.

**CBSE Class 6 Mathematics/Knowing our numbers is about the worksheets for Class 6 Mathematics. Here you can find out practice problems for Class 6 Mathematics.**

**CBSE Class 6 Mathematics WorksheetsKnowing Our Numbers – Chapter 1Choose the correct answer from the options given below:**

- Find the greatest number?

A. 4892

B. 4982

C. 4829 - The smallest 4 digit number that can be formed using the digits 3, 9, 0, 1 is —————

A. 0139

B. 1039

C. 1390 - Write the numeral of 2 x 10000 + 8 x 10 + 5 x 1

A. 20805

B. 20085

C. 20850 - 1000 hundreds make ————–

A. 1 lakh

B. 1 Crore

C. 10 lakh - 1 gram = ——— milligrams

A. 10

B. 100

C. 1000**Fill in the blanks:** - The numeral for Three lakh fifty three thousand five hundred is ————-
- 1000 million = ——— billion
- 1 lakh = —- ten thousand
- Round off to the nearest hundreds of 9537 is ——–
- The Roman numeral XC stands for —————-
**Answer the following:** - Make the greatest and smallest 4 digit numbers by using any one digit twice: 9, 0, 6
- Write the number name and expanded form of 29085
- Put commas suitably and write the number name according to International System of Numeration: 90877432
- Find the estimated sum of 678 + 985 (round off to nearest tens)
- Write in Roman numerals:

a) 342

b) 987

**ANSWERS:**

- 4982
- 1039
- 20085
- 1 lakh
- 1000
- 3,53,500
- 1
- 10
- 9500
- 90
- Greatest number is 9960

Smallest number is 6009. - 29085 – Twenty nine thousand eighty five.

Expanded form: 2 x 10000 + 9 x 1000 + 8 x 10 + 5 x 1 - 90,877,432

Number name: Ninety million eight hundred seventy seven thousand four hundred thirty two. - 678 rounds off to 680

985 rounds off to 990

Estimated sum = 680 + 990 = 1670 - 342 – CCCXLII

987 – CMLXXXVII