How many lakhs and thousands are there in the Abacus?

 

Find the sum of greatest $4-$digit number and smallest $5-$digit numbers.

Arrange the following numbers in ascending order and descending order.

$33,058; 40,978; 97,879; 81,421; 90,470; 47,224$

Arrange the following numbers in ascending order and descending order.

$99,999; 11,111; 22,222; 33,333; 44,444; 66,666$

Find the sum:

$\underline{\begin{array}{cccccc}& & 6& 8& 7& 5\\ & & & 6& 3& 7\\ & 5& 4& 3& 0& 0\\ +& & & & 5& 4\end{array}}$

Find the sum:

$$\begin{gathered} \underline{\begin{array}{ccccccc}& & 3& 2& 5& 6& 7\\ & & & & & 7& 8\\ & & & 4& 3& 2& 4\\ & & +& 5& 0& 0& 0\end{array}} \\ \begin{array}{ccccccc}& & & & & & \end{array} \end{gathered}$$