Question

1) P/q is form of which numbers ?

2) Write additive inverse of. I) 19/ -6. 2) -6 / -5

3) Find multiplicative inverse of. I) -1 X -2/5 2) -13

4) Verify : -(-x ) = x if x= -14/17

5) Zero has -------- reciprocal.

6) The reciprocal of -7 is --------

7) The product of two rational numbers is always a -----

8) What is the reciprocal of 1 and -1

9) How many rational numbers are present between any two rational numbers?

10) Solve the equations

a) 6x= 12 b) y+3= 10 c) t/5=10 d) 7x-9=16

11 ) A number ending in 2,3,7,8 is never a ----------- number

12The square of odd number -------

13) The square of an even number is -------

14) What will be the unit digit of the square of a) 272 b)1234 c) 52698 d) 99880

15) Without adding ,find the sum a) 1+3+5+7+9 b) 1+3+5+7+9+11+13

16) How many numbers lie between squares of 12 and 13.

17) The number of digits in the square root of 1000 is --------

18) The unit digit of the cube of the number 142 is-----------

19) The number of series of the end of the cube root of the cube number 8000000 is --------

20) 25 cube is ------

21) Write a Pythagorean triplet if one member is 8

22) The reciprocal of a positive rational number is ----------

23) Find the square root of 81 by repeated subtraction method.

24) Is 400 a perfect square number or not ?

25) Sum of two numbers is 75. If one of them is 25 find the other number?

2And 3 marks level questions

1)Represent 1/7 , -4/7 , 5/7 0n a number line .

2) Find 10 rational numbers between 1/3 and ½

3) solve : a)( X/3) + 1 = 7/15

b) 5y- 3 = 3y- 5 and check the result

c) (X/2) – 1/5 = (X/3) + ¼

d)(x-5)/3 = (x-3)/5

e) 15(y-4) – 2(y-9)+5(y+6)= 0

4) Find the square root by prime factor method

a) 729 b) 8100

5) Find square root by division method

a) 529 b) 7.29

6)is 1000 perfect cube or not?

7) Find cube root by prime factorisation method​

Answer 1

Answer:

I don't know how to do