The Horizontal Format Is Used Extensively in Algebra, but Occasionally $\begin{array} { r } - \quad 70 \\23 \\\hline\end{array}$

Multiple Choice

The horizontal format is used extensively in algebra, but occasionally the vertical format shows up. You should therefore have some exposure to the vertical format. Find the sum. $\begin{array} { r } - \quad 70 \\23 \\\hline\end{array}$

A) -40
B) -52
C) -49
D) -47
E) -44