CBSE Class 6 Mathematics Knowing Our Numbers Worksheet Set B

Read and download free pdf of CBSE Class 6 Mathematics Knowing Our Numbers Worksheet Set B. Download printable Mathematics Class 6 Worksheets in pdf format, CBSE Class 6 Mathematics Chapter 1 Knowing Our Numbers Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Mathematics Class 6 Assignments and practice them daily to get better marks in tests and exams for Class 6. Free chapter wise worksheets with answers have been designed by Class 6 teachers as per latest examination pattern

Chapter 1 Knowing Our Numbers Mathematics Worksheet for Class 6

Class 6 Mathematics students should refer to the following printable worksheet in Pdf in Class 6. This test paper with questions and solutions for Class 6 Mathematics will be very useful for tests and exams and help you to score better marks

Class 6 Mathematics Chapter 1 Knowing Our Numbers Worksheet Pdf

 

CHAPTER 1
NOTES:
NUMBER SYSTEM
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1. Natural Numbers - All the counting numbers are called Natural Numbers. The set of these numbers are represented by N. Thus, N = { 1,2,3,......} is the set of Natural Numbers.
 
2. Whole Numbers - All counting numbers together with 0 form the set of Whole Numbers. The set of these numbers is represented by W. Thus, W= {0,1,2,3,....} is the set of Whole Numbers.
 
3. Integers - All the natural numbers, 0 and the negatives of all counting numbers form the set of Integers. The set of these numbers are denoted by Z OR I. Thus, Z = { ......, -3 ,-2,-1 ,0 ,1, 2 ,3........} is the set of Integers.
 
4. Fraction - A number a / b, where a ,b are integers , b is not equal to 0 is called a fraction.
 
5. Rational Numbers - A number of the form p/ q where q is not equal to 0, and p and q are Integers is called a Rational Number. All Integers as well as fractions can be expressed in this form. So all Integers and Fractions are Rational Numbers. The set of rational numbers is denoted by Q. eg. 4/5 , -8/9 , 5 , -5 , 3.
 
6. Prime Number - A number that has only 2 factors : 1 and itself eg : 2 ,3 ,5 ,7 ,11 , 13 , 17 ,19 ,23 , 29 ,31 ,37 ,41 , 43 , 47 , 53 ,59 ,61 , 67 , 71 ,73 ,79 ,83 ,89 ,97.
 
7. Composite Number- A number that has more than two factors. Eg 4, 6 ,8 ,9 ,12 ,14 ,15 , 16 etc.

8. Twin Prime - Two prime numbers are Twin prime if there is only one composite number between them or if they differ by 2. Eg 3,5 ; 5,7 ; 11,13 ; 17,19; 29,31.

9. Prime Triplet - A set of consecutive three prime numbers that differ by 2. Eg 3 ,5 ,7.

 
10. Coprime Numbers - Two numbers are coprime if they do not have a common factor other than 1. Eg 2,3 ; 4,5 ; 28,31 ; 6,11.
 
11. Perfect Number - If the sum of the factors of a number is twice the number. Eg 6,28.
 
Factors of 6 are 1,2,3,6.
 
Sum of factors are 1 + 2 + 3 + 6 = 12.
 
12 is twice 6.
 
Factors of 28 are 1, 2, 4, 7, 14, 28.
 
sum of 1+2+4+7+14+28 = 56.
 
56 is twice 28.
 
12.INDIAN and INTERNATIONAL SYSTEM OF NUMERATION.
 
INDIAN ---Ten =10
   Hundred = 100
   Thousand = 1000
   Ten Thousand = 10,000
   Lakh = 1,00,000
   Ten Lakh = 10,00,000
   One Crore = 1,00,00,000
   Ten Crore = 10,00,00,000
   Hundred Crore = 100,00,00,000
   INTERNATIONAL---Ten =10
   Hundred =100
   Thousand = 1000
   Ten Thousand = 10,000
   Hundred Thousand = 100,000
   One Million = 1,000,000
   Ten Million = 10,000,000
   Hundred Million =100,000,000
   One Billion = 1,000,000,000
 
ASSIGNMENT 1
 
Q1. Write the following numbers in Indian System of Numeration.
 
i ) 42,007         ii ) 4,05,045      iii ) 35,42,012      iv ) 7,06,04,014
 
Q2. Rewrite each of the following numerals with proper commas in the international system.Also write the number name of each in the international system of numeration.
 
i ) 513625       ii ) 4035672         iii ) 65954923     iv ) 70902005
 
Q3. Write each of the following in expanded notation.
 
i ) 3057         ii ) 12345            iii ) 10205           iv ) 235060
 
Q4. Determine the product of the place values of two fives in 450758.

 

 

 

 

CBSE Class 6 Mathematics Knowing Our Numbers Worksheet Set B

Chapter 1 Knowing Our Numbers CBSE Class 6 Mathematics Worksheet

The above practice worksheet for Chapter 1 Knowing Our Numbers has been designed as per the current syllabus for Class 6 Mathematics released by CBSE. Students studying in Class 6 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 6 Mathematics on a daily basis. All the latest practice worksheets with solutions have been developed for Mathematics by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 6 Mathematics students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 6 Mathematics to develop the Mathematics Class 6 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 6 Mathematics designed by our teachers. After solving these you should also refer to Class 6 Mathematics MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 6 Mathematics which you can use to further make yourself better in Mathematics.

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