Answer :
Given the expression:
[tex]63-10[/tex]Since both are whole numbers, there is no need to estimate them.
Therefore:
[tex]63-10=53[/tex]Secondly:
[tex]\begin{gathered} 9.716\approx10 \\ \text{Therefore:} \\ 63-9.716\approx63-10=53 \end{gathered}[/tex]