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%%%
\begin{document}
\title{Puissances}
\author{Seconde générale}
\date{\today}
\maketitle
\thispagestyle{fancy}
\begin{consigne}{Consigne}
Pour chacune des questions suivantes, plusieurs propositions peuvent êtres correctes. Cochez les bonnes réponses.
\end{consigne}
 % fin de la consigne
\begin{enumerate}
\item \bgroup\bfseries\boldmath Que vaut $3^2$ ?\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $6$
\item[$\square$] $9$
\item[$\square$] $3 \times 2$
\item[$\square$] $5$
\end{multicols}
\end{enumerate} % fin des propositions de la question 1

\bigskip

\item \bgroup\bfseries\boldmath Que vaut $2^3$ ?\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $6$
\item[$\square$] $8$
\item[$\square$] $9$
\item[$\square$] $2 \times 3$
\end{multicols}
\end{enumerate} % fin des propositions de la question 2

\bigskip

\item \bgroup\bfseries\boldmath Que vaut $10^0$ ?\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $0$
\item[$\square$] $1$
\item[$\square$] $10$
\item[$\square$] $0^0$
\end{multicols}
\end{enumerate} % fin des propositions de la question 3

\bigskip

\item \bgroup\bfseries\boldmath Que vaut $(-4)^2$ ?\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $16$
\item[$\square$] $-8$
\item[$\square$] $-16$
\item[$\square$] $4$
\end{multicols}
\end{enumerate} % fin des propositions de la question 4

\bigskip

\item \bgroup\bfseries\boldmath Que vaut $-4^2$ ?\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $16$
\item[$\square$] $-8$
\item[$\square$] $-16$
\item[$\square$] $-4^2 = - (4^2) = -16$
\end{multicols}
\end{enumerate} % fin des propositions de la question 5

\bigskip

\item \bgroup\bfseries\boldmath Simplifier $3^4 \times 3^2$.\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $3^6$
\item[$\square$] $3^8$
\item[$\square$] $3^2$
\item[$\square$] $6^6$
\end{multicols}
\end{enumerate} % fin des propositions de la question 6


\newpage
\item \bgroup\bfseries\boldmath Simplifier $\dfrac{5^7}{5^3}$.\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $5^4$
\item[$\square$] $5^{10}$
\item[$\square$] $5^3$
\item[$\square$] $5^{21}$
\end{multicols}
\end{enumerate} % fin des propositions de la question 7

\bigskip

\item \bgroup\bfseries\boldmath Simplifier $(2^3)^4$.\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $2^{12}$
\item[$\square$] $2^7$
\item[$\square$] $8^4$
\item[$\square$] $6^4$
\end{multicols}
\end{enumerate} % fin des propositions de la question 8

\bigskip

\item \bgroup\bfseries\boldmath Simplifier $7^3 \times 2^3$.\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $14^3$
\item[$\square$] $9^6$
\item[$\square$] $7^6$
\item[$\square$] $2^3 \times 7^3 = (2 \times 7)^3 = 14^3$
\end{multicols}
\end{enumerate} % fin des propositions de la question 9

\bigskip

\item \bgroup\bfseries\boldmath Parmi les expressions suivantes, lesquelles sont égales à $4^{-3}$ ?\egroup
\begin{enumerate}
\begin{multicols}{2}
\item[$\square$] $\dfrac{1}{4^3}$
\item[$\square$] $-\dfrac{1}{4^3}$
\item[$\square$] $\dfrac{1}{-4^3}$
\item[$\square$] $4^{-3} = \dfrac{1}{4^3}$
\end{multicols}
\end{enumerate} % fin de la question 10
\end{enumerate} % fin du qcm
\end{document}