Slip test 5 Square and Square roots and Linear equations in one variables

 Slip Test -5

Class- 8                                                 Subject - Maths 

Chapters - Square and Square roots and Linear equations in one variables                                Marks : 20

Section A  MCQs of 1 mark each

5 and 12 are two of the Pythagorean Triplet, then the third one is                                                           a)7                  b)9                     c)13               d)17

Square root of 1225 is ____

             a) 25                  b) 35                  c) 65              d) 15

What could be the possible one’s digit of the no. whose square is 361?

  (a) 3, 4           (b) 6, 7                   (c) 1, 9              (d) 7, 8 

The squares of which of the following would be odd numbers? (i) 431  (ii) 2826 (iii) 7779 (iv) 82004

           (a)(iii) & (iv              (b) (i) & (iii)                    (c) (ii) & (iii)           (d) (i) & (iv)

Non-perfect square numbers between n2 and (n+1)2 are ___

             a) n              b) n+2                  c) 2n                      d) n+11

The value of x in the equation 3x+4=13 is ___

          a) 1          b) 2                       c) 3                     d) 4

What will be the number of digits in the square root of 25600? 

 (a) 3                   (b) 2             (c) 5                (d) 4 

The root of the equation 9z-15=9-3z is                                                                                                               a) 1          b) 2                       c) 3                     d) 4

When 9 is added to two times a number, we get 67. The number is __                                                   a) 25          b) 27                      c) 29                     d) 31

The difference of two numbers is 21. The larger number  is x. Then the smallest number is ___                                               a) 21+x          b) 21-x                       c) x-21                   d) -x-21

Section B  Very Short Answer of 1 mark each

1. Express 49 as the sum of 7 odd numbers.

2. The difference between the squares of 21 and 22 is --------------. 

3. The number of zeros in the square of 700 is -------------.

4. What will be the unit digit of the squares of the number 799? 

5. Which least number should be subtracted from 629 so as to get a perfect square ? 

6. Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.

7. By which smallest number 90 must be multiplied so as to make it a perfect square ?

8. If two angles are complementary and one angle is 10◦ greater than the other, then the smaller angle of the two is —---

9. Twice a number is as much greater than 30 as the three times of the number less than 60. Then the number is _______

10.  The degree of the equation  

Slip Test -5 ANSWER KEY

Class- 8                                                 Subject - Maths 

Chapters - Square and Square roots and Linear equations in one variables                                Marks : 20

Section A  MCQs of 1 mark each

1. c)13              

2.  b) 35                

3. c) 1, 9              

4.  (b) (i) & (iii)                

5.  c) 2n                      

6. c) 3                     

7.  (a) 3                 

8.   b) 2                       

9. c) 29                     

10.  c) x-21                  Section B  Very Short Answer of 1 mark each

11. 49=1+3+5+7+9+11+13

12. 484-441=43. 

13. 4.

14. 1

15. 629-625=4

16. 40 , 55

17. 10

18. 40

19. 18

20. 1