**Powers and Exponents ** - Class 1 Mathematics CBSE ICSE

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**Powers and Exponents**by practicing the below questions from class 1 Mathematics.###### Let A = 560$\times $
10^{4} , B = 57.1$\times $
10^{5}, C = 0.00025$\times $
10^{11} and D = 0.0000048$\times $
10^{11}. Arrange these numbers in ascending order.

###### 2^{0} + 3^{0} + 4^{0} = ?

###### $\begin{array}{l}(64{)}^{\frac{-2}{3}}x{\left(\frac{1}{4}\right)}^{-3}\\ \end{array}$ is equal to ________.

###### Identify the correct statements from the following.

(i) x^{y} > y^{x}, if x = 2 and y = 4.

(ii) ${x}^{-y}<{y}^{-x}$, if x = 3 and y = 5.

(iii)${\left(-y\right)}^{x}>(-x{)}^{y}$, if x = 3 and y = 5.

(iv) If x and y are integers and x,y$\ne $0, then the reciprocal of ${\left(\frac{x}{y}\right)}^{n}$ = ${\left(\mathrm{reciprocal}\mathrm{of}\frac{x}{y}\right)}^{n}$

###### (- 7)^{4 }is _________.

###### $\frac{\sqrt{2}-1}{\sqrt{2}+1}$ = ____________.

###### The sum of the powers of the prime factors in 108 x 192 is _________.

###### The value of (- 2)^{3} is _________.

###### The distance of the earth from the sun is 149,000,000 km. In scientific notation the distance is _________.

###### Express 0.0084 in scientific notation.

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