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%TCIDATA{Version=4.00.0.2321}
%TCIDATA{Created=Mon Aug 19 14:52:24 1996}
%TCIDATA{LastRevised=Sunday, October 24, 2004 10:51:51}
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\input{tcilatex}

\begin{document}


\section{Exam}

\subsection{\protect\vspace{1pt}Text}

\section{OPERACIONES CON ENTEROS (II)}

Nombre y Apellidos: 
%TCIMACRO{\HTML{<Input TYPE="Text" NAME="STUDENTNAME" VALUE="20" SIZE=0>}}%
%BeginExpansion
%%
%EndExpansion

\vspace{1pt}

\subsection{Setup}

Choice Space: 2

Choices: No Break, Radio Buttons, Permute

Questions: no permute

Title: Test sobre operaciones con enteros

Submit: Comprueba tus respuestas

\section{Question}

\subsection{Comment}

Operaciones con enteros 1

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-(%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
+%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot 
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)$

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{b-\left( \left( a+b\right) \cdot c+d\right) }{b-\left( a+b\right) c-d}{evaluate}}%
%BeginExpansion
b-\left( a+b\right) c-d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( \left( a+b\right) \cdot \left( c+d\right) \right) }{b-\left( a+b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
b-\left( a+b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( a+b\cdot \left( c+d\right) \right) }{b-a-b\left( c+d\right) }{evaluate}}%
%BeginExpansion
b-a-b\left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{\FORMULA{b-\left( a+b\cdot c+d\right) }{b-a-bc-d}{evaluate}}%
%BeginExpansion
b-a-bc-d%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 2

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $1-\left( 
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot 
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
\right) $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{1-\left( \left( a-b\right) \cdot c+d\right) }{1-ca+bc-d}{simplify}}%
%BeginExpansion
1-ca+bc-d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{1-\left( \left( a-b\right) \cdot \left( c+d\right) \right) }{1-\left( a-b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
1-\left( a-b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{1-\left( a-b\cdot \left( c+d\right) \right) }{1-a+b\left( c+d\right) }{evaluate}}%
%BeginExpansion
1-a+b\left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{\FORMULA{1-\left( a-b\cdot c+d\right) }{1-a+bc-d}{evaluate}}%
%BeginExpansion
1-a+bc-d%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 3

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b>c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
)\left( 
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
+%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot 
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
\right) $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( c-b\right) \left( \left( a+b\right) \cdot c-d\right) }{\left( c-b\right) \left( \left( a+b\right) c-d\right) }{evaluate}}%
%BeginExpansion
\left( c-b\right) \left( \left( a+b\right) c-d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-b\right) \left( \left( a+b\right) \cdot \left( c-d\right) \right) }{\left( c-b\right) \left( a+b\right) \left( c-d\right) }{evaluate}}%
%BeginExpansion
\left( c-b\right) \left( a+b\right) \left( c-d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-b\right) \left( a+b\cdot \left( c-d\right) \right) }{\left( c-b\right) \left( a+b\left( c-d\right) \right) }{evaluate}}%
%BeginExpansion
\left( c-b\right) \left( a+b\left( c-d\right) \right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-b\right) \left( a+b\cdot c-d\right) }{\left( c-b\right) \left( a+bc-d\right) }{evaluate}}%
%BeginExpansion
\left( c-b\right) \left( a+bc-d\right) %
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 4

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot 
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
(-2)$

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot c-d\left( -2\right) }{\left( a-b\right) c+2d}{evaluate}}%
%BeginExpansion
\left( a-b\right) c+2d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot \left( c-d\right) \left( -2\right) }{-2\left( a-b\right) \left( c-d\right) }{evaluate}}%
%BeginExpansion
-2\left( a-b\right) \left( c-d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-b\cdot \left( c-d\right) \left( -2\right) }{a+2b\left( c-d\right) }{evaluate}}%
%BeginExpansion
a+2b\left( c-d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{\FORMULA{a-b\cdot c-d\left( -2\right) }{a-bc+2d}{evaluate}}%
%BeginExpansion
a-bc+2d%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 5

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{-2a}{-2a}{evaluate}}%
%BeginExpansion
-2a%
%EndExpansion
+%
%TCIMACRO{\FORMULA{2b}{2b}{evaluate}}%
%BeginExpansion
2b%
%EndExpansion
\cdot 
%TCIMACRO{\FORMULA{2c}{2c}{evaluate}}%
%BeginExpansion
2c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{2d}{2d}{evaluate}}%
%BeginExpansion
2d%
%EndExpansion
$

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{2\left( -a+b\right) \cdot c+d}{2\left( -a+b\right) c+d}{evaluate}}%
%BeginExpansion
2\left( -a+b\right) c+d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{2\left( -a+b\right) \cdot \left( c+d\right) }{2\left( -a+b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
2\left( -a+b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{2\left( -a+b\cdot \left( c+d\right) \right) }{-2a+2b\left( c+d\right) }{evaluate}}%
%BeginExpansion
-2a+2b\left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{\FORMULA{-2a+2b2c+2d}{-2a+4bc+2d}{evaluate}}%
%BeginExpansion
-2a+4bc+2d%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 6

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a+b\right) \cdot c+d}{\left( a+b\right) c+d}{evaluate}}%
%BeginExpansion
\left( a+b\right) c+d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a+b\right) \cdot \left( c+d\right) }{\left( a+b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
\left( a+b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\cdot \left( c+d\right) \right) }{a-b\left( c+d\right) }{evaluate}}%
%BeginExpansion
a-b\left( c+d\right) %
%EndExpansion
\correctchoice{}$

\item $%
%TCIMACRO{\FORMULA{a+b\cdot c+d}{a+bc+d}{evaluate}}%
%BeginExpansion
a+bc+d%
%EndExpansion
$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 7

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot c+d}{\left( a-b\right) c+d}{evaluate}}%
%BeginExpansion
\left( a-b\right) c+d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot \left( c+d\right) }{\left( a-b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
\left( a-b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\cdot \left( c+d\right) a\right) }{a-b\left( c+d\right) a}{evaluate}}%
%BeginExpansion
a-b\left( c+d\right) a%
%EndExpansion
\correctchoice{}$

\item $%
%TCIMACRO{\FORMULA{a-b\cdot c+d}{a-bc+d}{evaluate}}%
%BeginExpansion
a-bc+d%
%EndExpansion
$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 8

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)\left( 
%TCIMACRO{\FORMULA{-b}{-b}{evaluate}}%
%BeginExpansion
-b%
%EndExpansion
\right) \right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a+b\right) \cdot c-d}{\left( a+b\right) c-d}{evaluate}}%
%BeginExpansion
\left( a+b\right) c-d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a+b\right) \cdot \left( c-d\right) }{\left( a+b\right) \left( c-d\right) }{evaluate}}%
%BeginExpansion
\left( a+b\right) \left( c-d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\left( c+d\right) \left( -b\right) \right) }{a+b^{2}\left( c+d\right) }{evaluate}}%
%BeginExpansion
a+b^{2}\left( c+d\right) %
%EndExpansion
\correctchoice{}$

\item $%
%TCIMACRO{\FORMULA{a+b\cdot c-d}{a+bc-d}{evaluate}}%
%BeginExpansion
a+bc-d%
%EndExpansion
$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 9

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot c-d}{\left( a-b\right) c-d}{evaluate}}%
%BeginExpansion
\left( a-b\right) c-d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot \left( c-d\right) }{\left( a-b\right) \left( c-d\right) }{evaluate}}%
%BeginExpansion
\left( a-b\right) \left( c-d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\cdot \left( c+d\right) -c\right) }{a-b\left( c+d\right) +c}{evaluate}}%
%BeginExpansion
a-b\left( c+d\right) +c%
%EndExpansion
\correctchoice{}$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\cdot \left( c+d\right) +c\right) }{a-b\left( c+d\right) -c}{evaluate}}%
%BeginExpansion
a-b\left( c+d\right) -c%
%EndExpansion
$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 10

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c\neq d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
+%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( -a+b\right) \cdot c+d}{\left( -a+b\right) c+d}{evaluate}}%
%BeginExpansion
\left( -a+b\right) c+d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( -a+b\right) \cdot \left( c+d\right) }{\left( -a+b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
\left( -a+b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\left( c+d\right) -d\right) }{a-b\left( c+d\right) +d}{evaluate}}%
%BeginExpansion
a-b\left( c+d\right) +d%
%EndExpansion
\correctchoice{}$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\left( c+d\right) +d\right) }{a-b\left( c+d\right) -d}{evaluate}}%
%BeginExpansion
a-b\left( c+d\right) -d%
%EndExpansion
$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 11

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a+b\right) \cdot c+d}{\left( a+b\right) c+d}{evaluate}}%
%BeginExpansion
\left( a+b\right) c+d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a+b\right) \cdot \left( c+d\right) }{\left( a+b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
\left( a+b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\left( c-d\right) +d\right) }{a-b\left( c-d\right) -d}{evaluate}}%
%BeginExpansion
a-b\left( c-d\right) -d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\left( c-d\right) -d\right) }{a-b\left( c-d\right) +d}{evaluate}}%
%BeginExpansion
a-b\left( c-d\right) +d%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 12

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-\left[ -%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot c+d}{\left( a-b\right) c+d}{evaluate}}%
%BeginExpansion
\left( a-b\right) c+d%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( a-b\right) \cdot \left( c+d\right) }{\left( a-b\right) \left( c+d\right) }{evaluate}}%
%BeginExpansion
\left( a-b\right) \left( c+d\right) %
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( -b\cdot \left( c-d\right) -d\right) }{a+b\left( c-d\right) +d}{evaluate}}%
%BeginExpansion
a+b\left( c-d\right) +d%
%EndExpansion
\correctchoice{}$

\item $%
%TCIMACRO{%
%\FORMULA{a-\left( b\cdot \left( c-d\right) -d\right) }{a-b\left( c-d\right) +d}{evaluate}}%
%BeginExpansion
a-b\left( c-d\right) +d%
%EndExpansion
$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 13

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{-\left( c-d\right) -\left( -b\cdot \left( c-d\right) -a\right) }{-c+d+b\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d+b\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) +\left( -b\cdot \left( c-d\right) -a\right) }{c-d-b\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
c-d-b\left( c-d\right) -a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -b\cdot \left( -c+d\right) -a\right) }{c-d+b\left( -c+d\right) +a}{evaluate}}%
%BeginExpansion
c-d+b\left( -c+d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -b\cdot \left( c-d\right) -a\right) }{c-d+b\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
c-d+b\left( c-d\right) +a%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 14

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a\neq b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
\right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{-\left( c-d\right) -\left( -a\cdot \left( c-d\right) -b\right) }{-c+d+a\left( c-d\right) +b}{evaluate}}%
%BeginExpansion
-c+d+a\left( c-d\right) +b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) +\left( -a\cdot \left( c-d\right) -b\right) }{c-d-a\left( c-d\right) -b}{evaluate}}%
%BeginExpansion
c-d-a\left( c-d\right) -b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -a\cdot \left( -c+d\right) -b\right) }{c-d+a\left( -c+d\right) +b}{evaluate}}%
%BeginExpansion
c-d+a\left( -c+d\right) +b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -a\cdot \left( c-d\right) -b\right) }{c-d+a\left( c-d\right) +b}{evaluate}}%
%BeginExpansion
c-d+a\left( c-d\right) +b%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 15

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a>b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left( 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right) \right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) +\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{c-d-a\left( c-d\right) +a-b}{evaluate}}%
%BeginExpansion
c-d-a\left( c-d\right) +a-b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( a\cdot \left( c-d\right) -\left( b-a\right) \right) }{c-d-a\left( c-d\right) -a+b}{evaluate}}%
%BeginExpansion
c-d-a\left( c-d\right) -a+b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -a\cdot \left( c-d\right) +\left( b-a\right) \right) }{c-d+a\left( c-d\right) +a-b}{evaluate}}%
%BeginExpansion
c-d+a\left( c-d\right) +a-b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{c-d+a\left( c-d\right) -a+b}{evaluate}}%
%BeginExpansion
c-d+a\left( c-d\right) -a+b%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 16

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a>b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left( 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right) \right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) +\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{c-d-a\left( c-d\right) +a-b}{evaluate}}%
%BeginExpansion
c-d-a\left( c-d\right) +a-b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( a\cdot \left( c-d\right) -\left( b-a\right) \right) }{c-d-a\left( c-d\right) -a+b}{evaluate}}%
%BeginExpansion
c-d-a\left( c-d\right) -a+b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -a\cdot \left( c-d\right) +\left( b-a\right) \right) }{c-d+a\left( c-d\right) +a-b}{evaluate}}%
%BeginExpansion
c-d+a\left( c-d\right) +a-b%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{\left( c-d\right) -\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{c-d+a\left( c-d\right) -a+b}{evaluate}}%
%BeginExpansion
c-d+a\left( c-d\right) -a+b%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 17

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a>b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left( 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right) \right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) +\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{-c+d-a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d-a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( a\cdot \left( c-d\right) -\left( b-a\right) \right) }{2b-c+d-a\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
2b-c+d-a\left( c-d\right) -a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) +\left( b-a\right) \right) }{-c+d+a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d+a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{2b-c+d+a\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
2b-c+d+a\left( c-d\right) -a%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 18

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a>b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left( 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right) \right] $

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) +\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{-c+d-a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d-a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( a\cdot \left( c-d\right) -\left( b-a\right) \right) }{2b-c+d-a\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
2b-c+d-a\left( c-d\right) -a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) +\left( b-a\right) \right) }{-c+d+a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d+a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{2b-c+d+a\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
2b-c+d+a\left( c-d\right) -a%
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 19

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a>b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left( 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right) \right] -%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
$

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) +\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{-c+d-a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d-a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( a\cdot \left( c-d\right) -\left( b-a\right) \right) }{2b-c+d-a\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
2b-c+d-a\left( c-d\right) -a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) +\left( b-a\right) \right) }{-c+d+a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d+a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{-a-b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) -d}{-2a-c+a\left( c-d\right) }{evaluate}}%
%BeginExpansion
-2a-c+a\left( c-d\right) %
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\section{Question}

\subsection{Comment}

Operaciones con enteros 20

\subsection{Setup}

$a:=\limfunc{rand}(1,9)$

$b:=\limfunc{rand}(1,9)$

$c:=\limfunc{rand}(1,9)$

$d:=\limfunc{rand}(1,9)$

Conditions:$(a>b)\wedge (a\neq c)\wedge (a\neq d)\wedge (b\neq c)\wedge
(b\neq d)\wedge (c<d)$

\subsection{Statement}

Calcula: $-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
-%
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-(%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left[ -%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\cdot (%
%TCIMACRO{\FORMULA{c}{c}{evaluate}}%
%BeginExpansion
c%
%EndExpansion
-%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
)-\left( 
%TCIMACRO{\FORMULA{b}{b}{evaluate}}%
%BeginExpansion
b%
%EndExpansion
-%
%TCIMACRO{\FORMULA{a}{a}{evaluate}}%
%BeginExpansion
a%
%EndExpansion
\right) \right] -%
%TCIMACRO{\FORMULA{d}{d}{evaluate}}%
%BeginExpansion
d%
%EndExpansion
$

\subsection{Choices}

\begin{itemize}
\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) +\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) }{-c+d-a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d-a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( a\cdot \left( c-d\right) -\left( b-a\right) \right) }{2b-c+d-a\left( c-d\right) -a}{evaluate}}%
%BeginExpansion
2b-c+d-a\left( c-d\right) -a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) +\left( b-a\right) \right) }{-c+d+a\left( c-d\right) +a}{evaluate}}%
%BeginExpansion
-c+d+a\left( c-d\right) +a%
%EndExpansion
$

\item $%
%TCIMACRO{%
%\FORMULA{-a-b-\left( c-d\right) -\left( -a\cdot \left( c-d\right) -\left( b-a\right) \right) -d}{-2a-c+a\left( c-d\right) }{evaluate}}%
%BeginExpansion
-2a-c+a\left( c-d\right) %
%EndExpansion
\correctchoice{}$
\end{itemize}

\begin{description}
\item[Fixed] Ninguna de las anteriores.
\end{description}

\end{document}