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CBSE class8 Rational numbers

Authored by bharathi naidu

Mathematics

7th Grade

Used 35+ times

CBSE class8 Rational numbers
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

p and q are integers

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

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

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

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

-(-x) is same as

-x

x

1/x

-1/x

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Addition is associative for

Natural numbers

Whole numbers

Rational numbers

All of these

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reciprocal of x is

-x

1/x

x+1

x

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Additive identity of rational numbers is

1

-1

x

0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rational numbers are not closed under

Subtraction

Division

Addition

Multiplication

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The additive inverse of a/b is

-b/a

b/a

a/b

-a/b

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