Question

Solve the following:

$$\begin{gathered} \begin{array}{cc}1& 7\\ -& 3\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{cc}1& 4\\ +& 3\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{cc}3& 9\\ -1& 0\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{cc}1& 2\\ +2& 4\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{cc}8& 6\\ -5& 8\end{array} \\ \overline{\underline{}} \end{gathered}$$


$$\begin{gathered} \begin{array}{}\end{array}\begin{array}{ccc}1& 3& 9\\ -1& 1& 0\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{}\end{array}\begin{array}{ccc}2& 3& 7\\ +2& 1& 3\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{}\end{array}\begin{array}{ccc}3& 2& 5\\ -2& 0& 4\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{}\end{array}\begin{array}{ccc}4& 7& 4\\ -1& 3& 6\end{array} \\ \overline{\underline{}} \end{gathered}$$


$$\begin{gathered} \begin{array}{}\end{array}\begin{array}{ccc}6& 4& 2\\ -4& 1& 3\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{cc}4& 9\\ +2& 0\end{array} \\ \overline{\underline{}} \end{gathered}$$ $$\begin{gathered} \begin{array}{}\end{array}\begin{array}{ccc}1& 3& 5\\ +1& 4& 6\end{array} \\ \overline{\underline{}} \end{gathered}$$

Answer 1