$a$ and $b$ represent digits in the correctly-worked addition operation above. What is the value of $a?$

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AAPL: Moderator; Posts: 2185; Joined: Sun Oct 29, 2017 2:08 pm; Followed by:2 members

$a$ and $b$ represent digits in the correctly-worked addition operation above. What is the value of $a?$

by AAPL » Thu Sep 07, 2023 4:33 pm

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$\begin{array}{c}
\phantom{+}\, 1ab \\
+ \, ba1 \\ \hline
\phantom{+} \, 746
\end{array}$

$a$ and $b$ represent digits in the correctly-worked addition operation above. What is the value of $a?$

A. $2$
B. $3$
C. $4$
D. $6$
E. $7$

OA E

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