**Powers and Exponents** - Class 7 Mathematics CBSE ICSE

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**Powers and Exponents**by practicing the below questions from class 7 Mathematics.###### What is (2 x 3)^{4 }= ?

###### Express $-\frac{27}{8}$ as the power of the rational number.

###### (a^{m})^{n }= ______

###### Write the number in the exponential form _{$\frac{144}{81}$
} = ______.

###### Fill in the missing exponent. 5^{#rect }x 5^{5} = 5^{-2}

###### ${\left({\left(\frac{1}{3}\right)}^{2}\right)}^{-2}$ = ?

###### While writing the reciprocal of an exponential form of a rational number the power _______.

###### Fill in the missing exponent. 2^{7} _{$\xf7$
}2^{ #rect }= 2^{-3}

###### The value of x in ${\left(\frac{2}{5}\right)}^{-3}x{\left(\frac{2}{5}\right)}^{18}={\left(\frac{2}{5}\right)}^{5x}\mathrm{is}\mathrm{\_\_\_\_\_\_\_\_}.$

###### If $\sqrt{2}$ = 1.414 and $\sqrt{3}$ = 1.732, then find the value of $5\sqrt{128}+2\sqrt{75}-5\sqrt{108}$

Topics in Class 7 Mathematics:

Simple interest

Area and Perimeter of plane figures and surface area and volume of cube and cuboids

Factorization and Linear Equations

Algebraic Expression and Identities

Applications of Percentage

Simple and Compound Interest

Direct and Inverse Variation

Data Handling

Understanding Quadrilaterals

Area of Polygons

Representing Solids on Plane Surfaces

Surface Area and Volume

Rational Numbers

Playing with Numbers

Square and Square Roots

Cube and Cube Roots

Powers and Exponents

Time and Work

Percentage and its Applications

Ratio and Proportion

Properties of Triangles

Perimeter and Area of Circles and Some Rectilinear Figures

Area and Perimeter of plane figures and surface area and volume of cube and cuboids

Factorization and Linear Equations

Algebraic Expression and Identities

Applications of Percentage

Simple and Compound Interest

Direct and Inverse Variation

Data Handling

Understanding Quadrilaterals

Area of Polygons

Representing Solids on Plane Surfaces

Surface Area and Volume

Rational Numbers

Playing with Numbers

Square and Square Roots

Cube and Cube Roots

Powers and Exponents

Time and Work

Percentage and its Applications

Ratio and Proportion

Properties of Triangles

Perimeter and Area of Circles and Some Rectilinear Figures

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