I Did It>Chapter 4 - Exponents>Mental Maths

Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Exponents, Exercise 2: Mental Maths

Author:Vaishali Bhatia & Rupesh Pathak

Vaishali Bhatia Mathematics Solutions for Exercise - Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Exponents, Exercise 2: Mental Maths

Attempt the practice questions on Chapter 4: Exponents, Exercise 2: Mental Maths with hints and solutions to strengthen your understanding. I Did It solutions are prepared by Experienced Embibe Experts.

Questions from Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Exponents, Exercise 2: Mental Maths with Hints & Solutions

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q c

$(\frac{- 8}{729}) = {(\frac{- 2}{7})}^{3}$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q d

$(8^{3}) > (3^{8})$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q e

If $4^{x} = 256$ , then the value of $x$ is $4$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q f

${(- 1)}^{odd number} = 1$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q g

${(\frac{3}{7})}^{5} = \frac{3^{5}}{7^{5}}$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q h

$(\frac{2}{- 3}) \times (\frac{2}{- 3}) \times (\frac{2}{- 3}) \times (\frac{2}{- 3}) = {(\frac{- 2}{3})}^{4}$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q i

If $x^{m} = x^{n},$ then $m = n$

EASY

7th CBSE

IMPORTANT

I Did It>Chapter 4 - Exponents>Mental Maths>Q j

If $x^{m} = y^{m},$ then $x$ and $y$ may be not be equal.