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Rational numbers 8th class

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

The sum of the rational numbers – 8/19 and -4/57


-8 /19 और -4 /57 का योगफल क्या होगा

a)

-5/57

b)

7/22

c)

-28/57

d)

4/27

2.

Which of the following rational numbers is in the standard form?


इनमे से कौनसी परिमेय संख्या सरलतम रूप में है?

a)

9/28

b)

26/78

c)

14/16

d)

48/96

3.

A number of the form p/q is said to be a rational number if

a)

p and q are integers

b)

p and q are integers and p is not equal to zero.

c)

p and q are integers and q is not equal to zero.

d)

and q are integers and p and q both are not equal to zero.

4.

-(-x) is same as

a)

-x

b)

x

c)

1/x

d)

-1/x

5.

Addition is associative for

a)

Natural numbers

b)

Whole numbers

c)

Rational numbers

d)

All of these

6.

Between any two rational numbers, there lie

a)

two rational numbers

b)

no rational number

c)

infinite rational numbers

d)

infinite fractions

7.

If x be any rational number, than x+0 is

a)

-x

b)

0

c)

x

d)

1/x

8.

Reciprocal of x is

a)

-x

b)

1/x

c)

x+1

d)

x

9.

If y be the reciprocal of rational number x, then the reciprocal of y will be

a)

x

b)

y

c)

x/y

d)

y/x

10.

Additive identity of rational numbers is

a)

1

b)

-1

c)

x

d)

0

11.

Reciprocal of 0 is

a)

1

b)

-1

c)

0

d)

Not defined

12.

Rational numbers are commutative for

a)

Subtraction

b)

Division

c)

Addition and Subtraction

d)

Addition and Multiplication

13.

Multiplicative identity of rational numbers is ?

a)

0

b)

1

c)

-1

d)

2

14.

Which of the following Rational number is the GREATEST?

a)

- 9 ⁄ 4

b)

9 ⁄ 4

c)

13 ⁄ 4

d)

- 13 ⁄ 4

15.

Identify the rational number EQUIVALENT to 3 ⁄ 5 from the following given rational numbers

a)

3 ⁄ 15

b)

9 ⁄ 15

c)

12 ⁄ 15

d)

None of the above

16.

Find the product.

(- 2 / 3) X (7 / 5)

a)

-6 / 35

b)

14/15

c)

- 14 / 15

d)

- 9 / 8

17.

Find:

(-3 / 5) + (20 / 5)

a)

17 / 5

b)

-23 / 5

c)

8 / 25

d)

17 / 25

18.
Solve
a)
-  1/3
b)
1/3
c)
3/4
d)
not here
19.
Solve
a)
-  2/3
b)
1/3
c)
- 1/3
d)
not here
20.
a)
TRUE
b)
FALSE
21.
a)
Commutative Property
b)
Distributive Property
c)
Associative Property
d)
None of the above
22.
Which number has no reciprocal?
a)
1
b)
-1
c)
0
d)
-2
23.
The reciprocal of a negative rational number is _______
a)
A positive rational number
b)
A negative rational number
c)
Can be either positive or negative rational number
d)
Not defined
24.
The following number(s) are/is their own reciprocal
a)
1
b)
-1
c)
1 and -1
d)
0
25.
a)
-7
b)
2 1/3
c)
7
d)
-2 1/3