[Maths Class Notes] on Number System MCQs Pdf for Exam

Numbers system is a writing system that is used for expressing numbers. Given that every number represents its unique representation. Number System is actually the method by which numbers are represented on the number line with the help of symbols and by following certain rules. The numbers here range from 0 to 9 and these numbers are referred to as digits. The Number System comprises a number of values based upon its digits base value.

The number system is the first chapter of Class 9 Math according to the new syllabus prescribed by CBSE. Students should practice different types of questions from this chapter as the topic consists of questions related to various other chapters like rational numbers, natural numbers, whole numbers, real numbers, etc. MCQ questions are mainly asked from the topic of the number system in examinations, so students should mainly practice MCQ type questions. Solving different types of questions gives the students an idea of the type and difficulty level of the problems going to come in the examinations. Solving MCQ questions also boosts the confidence of class 9 students.

Class 9 Math Number System

Class 9 Math syllabus includes some introductory chapters of different mathematical branches. The branches are alright, algebra, geometry, trigonometry, etc. Chapter 1 of the Class 9 Math syllabus is one of the most important chapters of arithmetic. This chapter is all about the number system. The students should learn the number system correctly for their future convenience. The number system is one of the most important introductory topics of mathematics. To learn this subject with concrete primary knowledge the students should read this chapter carefully. They should solve various mathematical problems on their own on this topic. 

Why Solve MCQ Questions for Class 9 Math Number Systems with Answers?

Practicing MCQ questions for Class 9 Math number systems with answers has a lot of benefits which are as follows:

• The students will get to know about the different types of questions asked from the chapter which include various other topics like the rational number, whole number, real number, etc through MCQ based questions.

• If you will solve the MCQs, you will be well aware of the fact that what weaknesses and strong points you have. MCQs contain direct points answers so if you are cleared with your concept, then only you can solve them. So if you want to self assess yourself, you should go for solving the MCQs as much as you can.

• The MCQ questions include both short and long type questions, which means that it can be both objectives or the student might do calculations to find out the answer.

• The MCQ questions for Class 9 Math Number Systems with answers also help students in revising the chapter after completing the syllabus and get a better knowledge of the question types going to come in the examination.

• The questions have detailed explanations with proper guidance with it so that the students understand the concept in a better way.

If you want to have a good knowledge of the whole chapter and all the concepts that you have studied, it is a must for you to start preparing your chapter using the MCQs. The more problems you will practice, the more your concepts will be cleared and it is necessary for you to clear your concepts if you are willing to score well in your examination.

• The Class 9 Number System MCQ questions cover the entire chapter in a proper way. 

• Solving the MCQs will clear your concept but they are also going to help you in objective type questions or entrance examinations. We know that in entrance examinations, most of the time, MCQ questions or objective questions are asked so when you are going to solve these MCQs, you will be able to easily attempt the MCQs questions in the competitive examinations and thus, can definitely score well.

Solved Examples

Following are some MCQ questions for class 9 math number Systems with answers. Each question consists of 4 options, out of which one is correct.

1. Write three rational numbers between 4 and 5?

1. 12 / 6, 13 / 6, 14 / 6

2. 12 / 7, 13 / 7, 14 / 7

3. 17 / 4, 18 / 4, 19 / 4

4. 17 / 2, 18 / 13, 19 / 23

Solution: 

There are several rational numbers between 4 and 5.

The numbers are between 16/4 and 20/4.

Therefore, the answer is C, that is, 17 / 4, 18 / 4, 19 / 4.

2. 4√6 + 7√6 is equal to:

1. 10√6

2. 11√6

3. 4√12

4. 8√12

Solution:

The answer is B.

4√6 + 7√6 = (4 + 7) √6 = 11√6.

3. √6 x √36 is equal to:

1. 6√6

2. 8√6

3. 2√2

4. 3√3

Solution:

The answer is A.

√6 x √36 = √ (6 x 36) = √ (2 x 3 x 3 x 3 x 2 x 2) = (3 x 2) √ (3 x 2) = 6√6

4. Which of the following is equal to x3?

1. x8 – x5

2. x8.x5

3. x7/x4

4. (x8)3

The answer is C.

Since, x7/x4 = x7 – 4 = x 3

5. (-7 + 4√7 – 3√7) is

1. A positive number which is rational.

2. A number which is irrational.

3. A negative number which is rational.

4. A number equal to zero.

Solution:

The answer to the problem is -7 + √7, which is an irrational number. 

6. (√12 + √10 – √2) is

1. A positive number which is rational.

2. A number equal to zero.

3. A number which is irrational.

4. an integer which is negative.

Solution: C, A number which is irrational.

7. A rational number is given as -6 / 8. This rational number can also be known as

1. A natural number.

2. A whole number.

3. A fraction.

4. A real number.

Solution: Option D. The rational number can also be said to be a real number.

Conclusion:

A number system is basically a system that represents numbers. You can also refer to it as a system that consists of numeration. Number system itself includes sub divisions also. Going through this article will help you to have a clear view about the number system.