Number system worksheet-8

1. Find the expanded form of number ; 6,04,18,517

2. Find the standard numeral for given expansion: 6,00,00,000 + 4,000 + 300 + 1

3. State the place values of the underlined digit. 4,81,00,219

4. Write in numbers : Sixty-two lakh forty-five thousand six hundred thirty-five.

5. Counting numbers are known as ­­_________numbers.

6. All natural numbers together with 0 form the set of all ________numbers.

7. All natural numbers, 0 and negatives of natural numbers form the set of all ________ numbers.

8. A number which can be expressed in the form of p/q, where p and q are integers and q¹0 is called a _______number.

9. Non-terminating and non-repeating decimals are _________numbers.

10. The collection of all rational and irrational numbers is called the set of________ numbers.

11. Ö 2, Ö3, Ö5, Ö7 are examples of __________ numbers.

12. –4, –3, –2, –1, 0, 1, 2, 3, 4, …. etc., are examples of________.

13. If ‘a’ is irrational, then ‘–a’ is________

14. Rational no. is subset of __________number.

15. a x ( b + c)= a x b + a x c is an example of ______ property

16. If any two whole numbers a and b are added, a to b or b to a, the ______ is always _____. This property is called _____ property of addition of whole numbers.

17. Let ‘p’ be a natural number ‘p’ is said to be prime if it has exactly _____distinct factors

18. Let ‘a’ be a natural number, ‘a’ is said to be composite if, it has atleast ______ distinct factors.

19. (1, 2), (1, 3), (3, 4), (3, 10), (3, 8), (5, 6), (7, 8) are example of;

20. How many 2 digit prime numbers are there?

Answer Key

1. (D)

2. (B)

3. (C)

4. (B)

5. (D)

6. (A)

7. (B)

8. (C)

9. (A)

10. (B)

11. (B)

12. (A)

13. (C)

14. (A)

15. (D)

16. (A)

17. (A)

18. (B)

19. (A)

20. (B)