Test: Rational Numbers

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Description

This mock test of Test: Rational Numbers for Class 8 helps you for every Class 8 entrance exam. This contains 10 Multiple Choice Questions for Class 8 Test: Rational Numbers (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Rational Numbers quiz give you a good mix of easy questions and tough questions. Class 8 students definitely take this Test: Rational Numbers exercise for a better result in the exam. You can find other Test: Rational Numbers extra questions, long questions & short questions for Class 8 on EduRev as well by searching above.

QUESTION: 1

What should be added to -3/4 to get ‘–1’?

A.
1/4
B.
-1/4
C.
1
D.
-3/4

Solution:

QUESTION: 2

What should be subtracted from −3/4 to get ‘–1’?

A.
1/4
B.
C.
1
D.

Solution:

QUESTION: 3

Which of the following is the identity element of addition?

A.
1
B.
–1
C.
0
D.
none of these

Solution:

An identity element or neutral element is a special type of element of a set with respect to a binary operation on that set, which leaves any element of the set unchanged when combined with it

An identity with respect to addition is called an additive identity (often denoted as 0) .

QUESTION: 4

Which of the following is the multiplicative identity for rational numbers?