Mahabir Singh Solutions for Chapter: Knowing Our Numbers, Exercise 3: ACHIEVERS SECTION (HOTS)

(i) The number  $825642$ rounded off to nearest thousand is $\mathrm{P}.$
(ii) Estimated product of $4023$ and $198$ is $\mathrm{Q}$.
(iii) $\mathrm{CXXXI}$ is written in Hindu-Arabic numeral as $\mathrm{R}$.
 

The difference between the place values of $8$ in the greatest and the smallest $4$-digit number formed by using the digits $3,\mathrm{}8,\mathrm{}0,\mathrm{}5$ (each digit used only once) is _____

State '$\mathrm{T}$' for true and '$\mathrm{F}$' for false.
I. Rounding off $2560$ to the nearest thousand, we get $2000$.
II. Place value of $9$ in $974304200$ is ninety crores.
III. $1$ lakh= $1000$ thousand
IV. Roman numeral for the smallest $4$-digit number is $\mathrm{M}$.

If a new number is formed by interchanging the tens and thousands place digits of $8727$, then what is the relation between them?

Match the following.