Question

Replace by the correct digit in each of the following:

$$\begin{gathered} 8*5* \\ -\underline{*132} \\ \underline{63*4} \end{gathered}$$

Answer 1

Since, subtraction of $8456-2132=6324$

By replacing $*$ in $$\begin{gathered} 8*5* \\ -\underline{*132} \\ \underline{63*4} \end{gathered}$$ ,

we get $$\begin{gathered} 8456 \\ -\underline{2132} \\ \underline{6324} \end{gathered}$$

Hence, $8*5*=8456$ and $*132=2132$.