V K Raman and S N Sharma Solutions for Exercise 3: CONCEPT REVISION TEST-4

A non-terminating and non-recurring decimal can be expressed as a fraction.

$0.08+0.4=0.02$

Irrational numbers are closed for addition.

$\frac{0.64}{0.16}=$_____.

$732486$ (approximated to hundreds)$=$_____.

The number of significant digits in$0.00780$ is _____.

$\sqrt{12}\times \sqrt{3}$_____.

$\left(\sqrt{7}+\sqrt{2}\right)\left(\sqrt{7}-\sqrt{2}\right)$_____.