Question

Subtract:

$-\begin{array}{cccccccc}8& 6& 0& 2& 5& 6& 1& 3\\ 5& 9& 0& 1& 2& 7& 2& 9\\ .& .& .& .& .& .& .& .\\ & & & & & & & \end{array}$

Answer 1

While subtracting two numbers, subtract columnwise from right and borrow from adjacent left is necessary.

$$\begin{gathered} 4151013 \\ -\begin{array}{cccccccc}8& 6& 0& 2& \cancel{5}& \cancel{6}& \cancel{1}& \cancel{3}\\ 5& 9& 0& 1& 2& 7& 2& 9\\ .& .& .& .& .& .& .& .\\ 2& 7& 0& 1& 2& 8& 8& 4\end{array} \end{gathered}$$

Thus, $2,70,12,884$ is the required answer.