Telangana Board Solutions for Chapter: Playing with Numbers, Exercise 3: Exercise 3

Make $3$ different $3$ digit numbers using $1, 9$ and $8$, where each digit can be used only once. Check which of these numbers is divisible by $9$.

Which numbers among $2, 3, 5, 6, 9$ divides $12345$ exactly? Write $12345$ in reverse order and test now which numbers divide it exactly?

Write different $2$ digit numbers using digits $3, 4$ and $5$ without repetition. Check whether these numbers are divisible by $2, 3, 5, 6$ and $9$?

Write the smallest digit and the greatest possible digit in the blank space of the following number so that the number formed is divisible by $3$.
_____ $6724$.

Write the smallest digit and the greatest possible digit in the blank space of the following number so that the number formed is divisible by $3$.
$4765$ _____ $2$

Write the smallest digit and the greatest possible digit in the blank space of the following number so that the number formed is divisible by $3$.
$7221$ _____ $5$

Find the smallest number that must be added to $123$, so that it becomes exactly divisible by $5$?

Find the smallest number that has to be subtracted from $256$, so that it becomes exactly divisible by $10$?