Jharne De and Ranjana Kumar Solutions for Chapter: Square and Square Root; Cube and Cube Root, Exercise 1: Mental Maths

If $x^2$ ends in $5$, then $x^3$ ends in _____.

The value of  $\sqrt[3]{343}\times \sqrt[3]{512}$ is equal to _____.

The sum of square and cube of $\left(1+\frac{3}{7}\right)$ is equal to _____.

Find the cube root of $85,184$ by prime factorisation method.

Find the square roots of $3,90,625$ by long division method.

The length of a side of a square field is $10\frac{1}{20}\mathrm{m}$. Find its area.

Find the value of $a$, if $\frac{1872}{\sqrt[3]{a}}=234$

The value of ${\left(0.8\right)}^2-{\left(0.1\right)}^2$ is equal to _____.