Chapter 1 | Real Numbers | National Book Foundation - Math World

Skip to content

$mathworld.pk$

Mathematics Notes For All Classes and Boards – MathWorld by Rizwan Zafar
MatricLATEST
- 9th ClassNEW
- 10th ClassNEW
FSc SectionUPDATED
SolutionsUPDATED
Entry Test Preparation (ECAT)LATEST
MCQs BankUPDATED
Intelligence TestLATEST
Other Links
- Discreate Mathematics
- About us

Entry Test Preparation

Entry Test Preparation

Search for:

$mathworld.pk$

Chapter 1 | Real Numbers | National Book Foundation

Welcome to Chapter 1 – Real Numbers (Class 9 Mathematics | NBF), your dedicated platform for mastering the fundamentals of real numbers through carefully designed, exam-focused MCQs.

Welcome to your

Chapter 1 | Real Numbers

May 29, 2026

13

Name

School

Given number $\sqrt{10}\cdot\sqrt{10}$ is:

Imaginary

Complex

Real

Irrational

None

Which number is self-multiplicative inverse?

$-3$

$-1$

$0$

$3$

None

According to reflexive property: $y^2 - 17 = ?$

$y - 17$

$y^2 + 17$

$-17 - y^2$

$y^2 - 17$

None

If $a > 0$, then $\sqrt{a}$ is

real

irrational

integer

rational

None

If $a + b = a$, what is value of $b$?

$-1$

$a$

$0$

$1$

None

$a(b + c - d)$ equals

$ab + ac + ad$

$ab - ac - ad$

$ac + ab - ad$

$a(b + c + d)$

None

Additive inverse of $\sqrt{5}$ is:

$\dfrac{1}{\sqrt{5}}$

$-5$

$-\sqrt{5}$

$5$

None

If $a \cdot b = 1$, what is $b$ called?

self-multiplicative inverse

additive identity

multiplicative inverse of $a$

multiplicative identity

None

The radical form of $x^{-\frac{3}{2}}$ is:

$\sqrt[3]{\frac{1}{x^2}}$

$\dfrac{1}{\sqrt{x^3}}$

$\dfrac{1}{\sqrt[3]{x^2}}$

$\sqrt{x^3}$

None

$\sqrt[n]{ab}$ is equal to

$\sqrt{ab}$

$(ab)^n$

$n(ab)$

$(ab)^{\frac{1}{n}}$

None

Commutative property does not hold with respect to:

addition

multiplication

both (a) and (b)

subtraction

None

$a^{r-s} \div a^{s}$ is

$a^{r} \cdot a^{2s}$

$a^{r+2s}$

$\dfrac{a^{r}}{a^{2s}}$

$a^{r-s}$

None

If $n = 8$ and $16 \times 2^{m} = 4^{\,n-8}$ then value of $m$ is:

$8$

$0$

$-4$

$-2$

None

1 out of 13

Time's up

Search for:

Mathematics Notes For All Classes and Boards – MathWorld by Rizwan Zafar
MatricLATEST
- 9th ClassNEW
- 10th ClassNEW
FSc SectionUPDATED
SolutionsUPDATED
Entry Test Preparation (ECAT)LATEST
MCQs BankUPDATED
Intelligence TestLATEST
Other Links
- Discreate Mathematics
- About us

Entry Test Preparation

Entry Test Preparation

Mathematics Notes For All Classes and Boards – MathWorld by Rizwan Zafar
MatricLATEST
- 9th ClassNEW
- 10th ClassNEW
FSc SectionUPDATED
SolutionsUPDATED
Entry Test Preparation (ECAT)LATEST
MCQs BankUPDATED
Intelligence TestLATEST
Other Links
- Discreate Mathematics
- About us

$mathworld.pk$

I am Rizwan Zafar, holding an MS in Mathematics, residing in Wah Cantt, Pakistan.

Quick Link

Knowledge Base
Hire An Expert
FAQ
Contact
Services

Rizwan Zafar

Rizwan Zafar

Social Networks

Visit mcstarters on these social links.

Facebook Twitter Youtube Linkedin

2019 © Copyrights (Rizwan Zafar).

About us
Contact Us
Disclaimer
Privcay and Policy
Terms & Conditons

Scroll to Top