Question

1. Which of the following rational numbers have terminating decimal representation?
[1] 3/5 [2] 3/13 [3] 40/27 [4] 23/7 2.
2.How many rational numbers can be found between two distinct rational numbers?
(i)Two (ii) Ten (iii) Zero (iv) Infinite
3. The value of (2+√3 )( 2-√3 ) is
(i)1 (ii)-1 (iii) 2 (iv) none of these
4. (27)-2/3 is equal to _____.
(i) 9 (ii) 1/9 (iii) 3 (iv) none of these
5. Simplify: 3√2 x 4√ 3 .
6. Find the two rational numbers between ½ and 1/3
7. Find two irrational numbers between 2 and 3.
8. Multiply √5 by 6 √2 .
9. Express 0.8888… in the form p/q
10. Simply by rationalizing denominator,( 7 + 3√5) / (7- 3√5).
11. Simplify { ( 625-1/2)-1/4}2 .
12 Visualize 3.76 on the line using successive magnification
13. If x = 1 - √2 , find the value of ( x – 1/x)3 .
14. Divide 12√15 by 4√3.
15. Represent in rational fo

Answer 1

1)3/5

2)infinite

3)1

4)none of these.. answer is 79/3

5)12√6

6)5/12

7)√5 and √6

8)6√10

9)8/9

10)

Answer 2

[1] 3/5 [2] 3/13 [3] 40/27 [4] 23/7 2.

2.How many rational numbers can be found between two distinct rational numbers?

(i)Two (ii) Ten (iii) Zero (iv) Infinite

3. The value of (2+√3 )( 2-√3 ) is

(i)1 (ii)-1 (iii) 2 (iv) none of these

4. (27)-2/3 is equal to _____.

(i) 9 (ii) 1/9 (iii) 3 (iv) none of these

5. Simplify: 3√2 x 4√ 3 .

6. Find the two rational numbers between ½ and 1/3

7. Find two irrational numbers between 2 and 3.

8. Multiply √5 by 6 √2 .

9. Express 0.8888… in the form p/q

10. Simply by rationalizing denominator,( 7 + 3√5) / (7- 3√5).

11. Simplify { ( 625-1/2)-1/4}2 .

12 Visualize 3.76 on the line using successive magnification

13. If x = 1 - √2 , find the value of ( x – 1/x)3 .

14. Divide 12√15 by 4√3.

15. Represent in rational fo