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

March 4, 2026

$a(b + c - d)$ equals

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

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

Commutative property does not hold with respect to:

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

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

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

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

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

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

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

Which number is self-multiplicative inverse?

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

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